Reverse Dictionary: INCO – INCQ

INCOHERENT – adjectives
– DANDERING foolish, weak-minded, twaddling; incoherent, rambling in speech …Bk1900 Eng. dial.
– IDLE † void of meaning or sense; foolish, silly, incoherent …1548
– RAVELLED confused in mind, muddled; rambling, incoherent, delirious …1866 Sc.
– SKIMBLE-SKAMBLE confused, incoherent, rambling, nonsensical …1596
– UNCOHERENT † incoherent …1588
incoherent – nouns
– GABBER † jabber; incoherent talk …1796
– JABBER chatter; incoherent, inarticulate, or unintelligible speech …18C colloq.
– RABBLE † a long string or series of words, etc., having little meaning or value; confused, careless speech; rapid and incoherent reading or talking; gabble …c1388
– RABBLING incoherent talk …1880 Sc.
incoherent – person 
– HAIVER a stupid, chattering person; an incoherent or garrulous person; a lazy, idle fellow …1897 Sc. & Eng. dial.
– HAVERS a stupid, chattering person; an incoherent or garrulous person; a lazy, idle fellow …1897 Sc. & Eng. dial.
– JABBERER one who jabbers…c1675 colloq.
incoherent – verbs
– CAIVER to waver in mind; to be incoherent, as persons are at the point of death …1825 Sc.
– DANDER to talk incoherently; to wander or ramble in talk …1847 Eng. dial.
– EAT ONE’S WORDS to speak incoherently; to mumble …1968 Amer. dial.
– EXTRAVAGE † to deviate in discourse from the proper subject; to digress; to talk incoherently; to ramble …c1690 obs. exc. Sc.
– FAFFLE † to stutter or stammer; to utter incoherent sounds …1573 obs. exc. Eng. dial.
– GABBER † to jabber, to gibber, to talk incoherently; to speak thickly or indistinctly …1706-7 obs. exc. Sc.
– GABBLE to talk volubly, inarticulately, and incoherently; to chatter, to prattle; also, to read so fast as to be unintelligible …1577
– HAIVER to talk in a foolish, incoherent manner  …1816 Sc.
– JABBER to chatter; to speak fast and indistinctly; to talk thick and fast; to talk gibberish; to speak or say rapidly, incoherently, and without making sense …1499
– MADDLE to ramble, to talk incoherently, to wander in speech …Bk1905 Eng. dial.
– MAUNDER to talk idly and incoherently; to mumble; to grumble; to threaten in an undertone; to muse, to ponder …1691 Sc. & Eng. dial.
– NOT TO BE ABLE TO SAY THREE WORDS OF A SORT not to speak coherently …1868 Eng. dial.
– RAFFLE to talk incoherently …Bk19C Eng. dial.
– RAVEL to wander in speech; to speak incoherently or untruthfully …1877 Sc. & Eng. dial.
– TAIVER to wander in mind or speech; to talk foolishly or incoherently; to rave; to become confused through weariness or exhaustion …1808 Sc.
– TAVER to wander in mind or speech; to talk foolishly or incoherently; to rave; to become confused through weariness or exhaustion …1808 Sc.
 
INCOHERENTLY – adverbs
– SKIMBLE-SKAMBLE in a confused or rambling manner; incoherently …1775
 
INCOME – nouns
– NEW GUINEA first possession of income …Bk1902 Oxford usage
– SKIM income not reported for tax purposes, esp. from the gross earnings of a gambling casino or other such enterprise …1961 Amer. gambling usage
– TITS Two Incomes, Two Stinkers; a working couple with two children …1980s US college sl.
income – person 
– TAKE-ARTIST one who regularly gains income from the taking of bribes, illicit commissions, etc. …1950s US sl.
– WEAK TAP one who has a low income …1950s sl.
 
INCOMPARABLE – adjectives
– MARROWLESS matchless, incomparable, without an equal …1660 Sc. & Eng. dial.
– NOT ABLE TO HOLD A CANDLE TO applied to one who is of lower quality than another …1640
– NOT A PATCHING TO in no way equal or comparable to …1851 Amer. dial.
– NOT A PATCH ON impossible to compare with; nowhere near; applied to one who is of lower quality than another …1860
– UNCOMPARABLE † incomparable …1382
– UNCOMPEERED incomparable, unique, unparalleled …1602
incomparable – interjections 
– THAT BEATS CREATION! that’s splendid, incomparable …1834
– THAT LICKS CREATION! that’s splendid, incomparable …1834
 
INCOMPATIBLE – adjectives
– UNASSOCIABLE incompatible …1816
incompatible – verbs 
– NOT TO SET HORSES to disagree; to be incompatible …1946 Amer. dial.
 
INCOMPETENCE – nouns
– MOPERY incompetence, stupidity …1907 US sl.
– P.O. PRUNE a personification of stupidity and incompetence …1895 Royal Air Force sl.
incompetence – verbs 
– BANJAX to ruin or destroy, often as a result of incompetence …US colloq.
– JACKLEG to act in an incompetent, unskilled or unprincipled way …M19 US sl.
 
INCOMPETENT – adjectives
– ABLELESS incompetent, careless, listless, awkward …Bk1898 Eng. dial.
– CHINLESS said of someone of weak character; incompetent, ineffectual …1881 sl., orig. US
– DRIPPY ineffectual, incompetent …1947 sl., orig. US
– DROOBY ineffectual, incompetent; contemptible …1972 Aust. sl.
– FART-ARSED useless, incompetent …1940s sl.
– FART-ARSEING useless, incompetent …1940s sl.
– GUY-A-WHACK useless, incompetent …20C Aust. sl.
– HAIVELESS wasteful, incompetent; slovenly, ill-mannered, unrefined …1871 Sc.
– HALF-ARSE careless, inadequate, incompetent, second-rate …M19 sl.
– HALF-ARSED careless, inadequate, inferior, unsatisfactory, ineffectual, incompetent, second-rate …1865 US sl.
– HALF-ASS careless, ineffectual, inadequate, incompetent, second-rate; mediocre, insignificant, unsatisfactory …M19 sl.
– HALF-ASSED careless, inadequate, incompetent, second-rate, mediocre, insignificant …1865 US sl.
– HALF-BAKED incompetent, inadequate, below standard …E16
– HAM ineffectual, incompetent …1941 sl.
– HANDLESS † incapable or incompetent with the hands, or in action; awkward, clumsy …1413 obs. exc. Eng. dial.
– HARRY TATE said of something incompetent or disorderly …1925 Brit. sl.
– HAVELESS wasteful, incompetent; slovenly, ill-mannered, unrefined …1871 Sc. & Eng. dial.
– HOPELESS ineffectual, incompetent …1922 sl.
– INSUFFISANT † insufficient; not sufficing; incompetent …1387
– JACK-LEG ineffectual, incompetent; amateur, untrained; said of someone without skill or training …1850 US sl.
– JIM CROW incompetent; small-time; fraudulent …1838 Amer. dial.
– LAME socially unsophisticated; naive; ‘square’; hence, easily imposed upon; stupid; inept; ineffectual; incompetent; unaware; inexperienced …1935 US sl., esp. Black usage
– MATTERLESS incapable; incompetent; helpless; shiftless …1794 Eng. dial.
– NEBBICH ineffectual, incompetent …1960 sl.
– NEBBISH ineffectual, incompetent …1941 sl.
– NEBBISHE ineffectual, incompetent …1960 sl.
– NEBBISHER ineffectual, incompetent …1960 sl.
– NEBISH ineffectual, incompetent …1960 sl.
– NERDY ineffectual, incompetent …1978 sl., orig. US
– NOT ABLE TO HIT THE GROUND WITH HIS HAT used of a complete incompetent …20C US sl.
– OFF ONE’S FEED incompetent, unskilled …1900s horse stable usage
– PATHETIC ineffectual, incompetent …1937 sl.
– POOPY ineffectual, incompetent …1957 sl., chiefly US
– SAIRIE in a poor or sorry state, pitiable, woeful, incompetent, paltry …1721 Sc.
– SAIRY in a poor or sorry state, pitiable, woeful, incompetent, paltry …1721 Sc.
– SARRY in a poor or sorry state, pitiable, woeful, incompetent, paltry …1721 Sc.
– SEARS-ROEBUCK inexperienced; incompetent …1917 Amer. dial.
– SHITTY incompetent …1970s sl.
– SPASTIC ineffectual, incompetent …1981 sl.
– UP IN THE AIR incompetent …1910s US sl.
– WET ineffectual, incompetent …1916 Brit. sl.
– WIMPISH ineffectual, incompetent …1925 sl., orig. US
– WIMPY ineffectual, incompetent …1967 sl., orig. US
incompetent – person
– BEARDLESS WONDER an incompetent or foolish person …1952 US sl.
– BEAUTY a term of contempt for a person who is the reverse of beautiful; an impertinent, an unmanageable person; one who is incompetent; used ironically …Bk1898 Eng. dial.
– BED-WETTER one who is a failure; an incompetent person …2002 US sl.
– BERK, BIRK, BURK(E) (mildly derogatory) an incompetent, objectionable, or annoying person; a term of abuse…1929 UK sl.
– BERKELEY (HUNT) a fool; a person whom one does not like; an incompetent …1937 Brit. rhyming sl. for ‘cunt’
– BILLYGOAT an incompetent, silly person; a fool …Bk1988 Aust. sl. 
– BURN-THE-GULLY an unskilful, incompetent workman …1930 Sc.
– BUTCHER a clumsy incompetent; a bungler …1954 US sl.
– CAKE a fool; a soft, foolish person; an incompetent …:1785 sl.
– CHUNT an unpleasant, incompetent person …2000s US college sl.
– DEADWOOD an incompetent or otherwise useless person …1887 US sl.
– DRIP an ineffectual or incompetent person …1932 sl.
– DRONGO a stupid, foolish, or incompetent person …M20 Aust. & NZ sl.
– DROOB an ineffectual or incompetent person; an unprepossessing or contemptible person. esp. a man …1933 Aust. sl.
– DROOP an ineffectual, incompetent, or languid person; a fool …1932 US sl.
– DROOPY-DRAWERS an ineffectual or incompetent person …1939 sl.
– DRUBE an ineffectual or incompetent person …1933 Aust. sl.
– DUB an ineffectual or incompetent person …1887 sl., orig. & chiefly US
– DUFFER an incompetent person; a person of no ability; a foolish oaf; a bungler …c1730 UK sl.
– FARMER an incompetent worker, esp. among loggers …1930 Amer. dial.
– FART-ARSE a term of contempt; a fool; an incompetent …1940s sl.
– FART-KNOCKER an incompetent blunderer …1952 US sl.
– FEEB an ineffectual or incompetent person …1911 US sl.
– GAWDELPUS an ineffectual, useless, or incompetent person; a generally miserable looking person …1908 sl.
– GAWD-HELP-US an ineffectual or incompetent person …1908 sl.
– GAZOOK an ineffectual or incompetent person; a clumsy oaf …1901 sl., orig. US
– GEEK an ineffectual or incompetent person …1876 sl., orig. Brit.
– GFU an incompetent person …1942 US military jocular
– GIMP (derogatory) a stupid, foolish, unpleasant, obnoxious, or contemptible person; a simpleton; an incompetent or weak person …1924 sl., orig. US
– GOBSHITE a stupid, incompetent, or contemptible person, esp. an ignorant loudmouth ..M20 sl., chiefly Irish
– GOOBER an idiot, a fool; an incompetent, a country bumpkin …M19 sl.
– GOOF an oaf, a ridiculous jerk; an incompetent fool …20C US sl. & colloq.
– GOOF-BALL a jerk; an oaf; an incompetent fool …M20 US sl.
– GOOFER an oaf, a ridiculous jerk; an incompetent fool …20C US sl. & colloq.
– GOOFUS an oaf, a ridiculous jerk; an incompetent fool …1910s US sl. & colloq.
– GUY an incompetent person, one who is inadequate …1980s US campus sl.
– HACK an incompetent person; an inadequate …1958 sl.
– HALF-ASS a stupid, incompetent person; a blockhead or bungler …1934 US sl. 
– HAM an incompetent person, esp. one who poses as more expert than his performance shows him to be, esp. in sports …1881 sl.
– HAM AND EGGER an average, inconsequential, or mediocre person; a person who is below par, a second-rate person; a stupid, incompetent, or inferior person; an oaf …1919 US sl.
– HEEL a person incompetent or undesirable or parasitic …1914 US sl.
– IN-AND-OUTER an incompetent, esp. in sport …L19 US sl.
– JACKASS a stupid or foolish person; an ineffective and incompetent person; a dolt or an oaf ;a blockhead; an ignoramus; a term of contempt…1823 
– JACK-LEG an incompetent, unskilled, unscrupulous, or unprincipled worker or professional person, esp. a quack doctor, a crooked lawyer, or a hypocritical preacher; a bungling workman …1853 US sl. 
– JACK-OFF a jerk or incompetent oaf …20C US sl.
– JERK an oaf or incompetent fool …19C US sl.
– JERK-OFF a worthless, contemptible person; a jerk or oaf; an incompetent do-nothing; a contemptuous term of address …1968  Brit. & US sl.
– LUNKHEAD an absolute fool; an idiot; an incompetent …M19 sl., orig. US
– MESS an ineffectual or incompetent person …1936 sl.
– MESS-UP an inadequate or incompetent person; a person with problems …1944 sl. 
– MOAK a stupid, awkward, or incompetent person; a dolt; a fool;  a blockhead; an old person, disrespectfully spoken to …1855
– MOKE a stupid, awkward, or incompetent person; a dolt; a fool;  a blockhead …1855 Amer. sl.
– MOMPARA an incompetent person; a fool; an idiot; also used affectionately, and as a form of address …1930 S. Afr. colloq.
– MOO (humorous or derogatory) a person regarded as misguided, foolish, or incompetent, usually a woman …Bk1909
– MOOK (derogatory) a term of abuse; an incompetent, ineffectual, foolish, or stupid person; a contemptible person (esp. with reference to low social status) …1930 US & Caribbean colloq.
– MUFFIN an incompetent person, one who is awkward …M19 sl.
– MUG a stupid or incompetent person; a fool or simpleton; a gullible person, a dupe …1857 colloq.
– MUMMY an incompetent person …1900s US sl.
– MUSH-HEAD an ineffectual or incompetent person …1890 US sl.
– NACKLE-ASS an incompetent, paltry fellow; a term of contempt …Bk1886 Eng. dial.
– NANA a fool, an idiot, an incompetent …1960s sl.
– NARNA a fool, an idiot, an incompetent …1960s sl.
– NEBBICH an ineffectual or incompetent person …1960 sl.
– NEBBISH an ineffectual or incompetent person …1941 sl.
– NEBBISHE an ineffectual or incompetent person …1960 sl.
– NEBBISHER an ineffectual or incompetent person …1960 sl.
– NEBISH an ineffectual or incompetent person …1960 sl.
– NERD a person lacking in social skills, fashion sense, or both; someone studious but socially inept; an ineffectual or incompetent person; an oaf, a jerk ……1951 chiefly US colloq.
– NERK an ineffectual or incompetent person …1966 Brit. sl.
– NO-HOPER a hopeless person; a useless or incompetent person; someone or something doomed to failure …1944 colloq.
– NONG a fool, a simpleton; a stupid or incompetent person …1944 Aust. & NZ sl.
– NURD a person lacking in social skills, fashion sense, or both; an ineffectual or incompetent person; someone studious but socially inept; an oaf, a jerk …1951 sl., chiefly US
– PALOOKA an ineffectual or incompetent person …1925 sl., chiefly US
– PISHER an ineffectual or incompetent person …1942 US sl.
– PLUG an ineffectual or incompetent person …1848 sl., chiefly US
– POGO an ineffectual or incompetent person …1972 Aust. sl.
– POOP an ineffectual or incompetent person …1915 sl.
– POOP-STICK an ineffectual or incompetent person …1930 sl.
– PRICK an ineffectual or incompetent man …1929 sl.
– PRUNE an ineffectual or incompetent person …1895 sl., orig. US
– PUNK an ineffectual or incompetent person … M19 US sl.
– RAT an incompetent …1970s Aust. criminals’ sl.
– RIGHT NANA a fool, an idiot, an incompetent …1960s sl.
– SCHLEMASEL a fool, esp. an unfortunate, an incompetent …L19 sl.
– SCHLEMAZEL a fool, esp. an unfortunate, an incompetent …L19 sl.
– SCHLEMIEL a fool; a clumsy person; a gullible person; an ineffectual or incompetent person …1892 sl., chiefly US
– SCISSOR one regarded as foolish, incompetent, or inexperienced …1916 Amer. dial.
– SCISSOR-BILL, SCISSORS-BILL one regarded as foolish; an ineffectual, incompetent, or inexperienced  person …1871 sl., chiefly US
– SCIZZOR-BILL one regarded as foolish, incompetent, or inexperienced …1940 Amer. dial.
– SHLEMOZZLE a fool, esp. an unfortunate, an incompetent …L19 sl.
– SHOWER 1. a group of ineffectual or incompetent people …1941 Brit. sl.
2. an ineffectual or incompetent person …1949 Brit. sl.
– SIZZER one regarded as foolish, incompetent, or inexperienced …1932 Amer. dial.
– SKATE a lazy and/or incompetent worker …1998 US Army usage
– SPA (derogatory) an incompetent person …1988 Irish sl.
– SPARE PART an incompetent or unsuitable man …World War I Eng. sl. 
– SPAS an ineffectual or incompetent person …1965 sl.
– SPASMOID one who is useless, clumsy, incompetent, and so is socially unacceptable …1986 US college sl.
– SPASS one who is useless, clumsy, incompetent, and so is socially unacceptable …1968 US college sl.
– SPASTIC (offensive) one who is uncoordinated, ineffectual, or incompetent; a fool; an idiot; a stupid person; a clumsy, unattractive person …1968 sl.
– SPAZ, SPAZZ – (derogatory) a spastic person; an ineffectual, useless, or incompetent person; a fool; an idiot; a stupid person; a clumsy, unattractive person …1965 sl. 
– SPAZMO a term of abuse; an incompetent person; a stupid or unpleasant person …1998 sl.
– SPAZZER one who is useless, clumsy, incompetent, and so is socially unacceptable …2003 UK sl.
– SPAZZO a spastic, either actual or figuratively as a derogatory term …1983 Aust. sl.
– STIFF an ineffectual or incompetent person …1882 sl., orig. US
– STUMBLE-BUM an ineffectual or incompetent person …1932 sl., orig. & chiefly US
– THROTTLEBOTTOM a harmless incompetent in public office …20C
– TURKEY an ineffectual or incompetent person …1951 US  sl.
– TWINK a jerk; an incompetent fool …20C US sl.
– WANK an objectionable or contemptible person, esp. male; an incompetent, pretentious, or ostentatious person …1970 sl.
– WANKER an objectionable or contemptible person, esp. male; an incompetent, pretentious, or ostentatious person …1971 Brit. sl. 
– WET FISH an ineffectual or incompetent person …1944 sl.
– WIMP a spineless, whimpering, undesirable person; an ineffectual or incompetent person; a weak, ineffectual man …1920 sl., orig. US
– WRITE-OFF a useless or worthless person; an incompetent person; a no-hoper …M20 sl., chiefly Services’
– WRONG GEE a devious and corrupt man; an incompetent person; an untrustworthy person …1920s US criminals’ sl.
– WRONG GUY a devious and corrupt man; an incompetent person; an untrustworthy person …1920s US criminals’ sl.
– WRONG INJUN an incompetent person; an untrustworthy person …1920s US criminals’ sl.
– WRONG ‘UN a criminal; a thoroughly bad person; an untrustworthy, incompetent person, animal, action, circumstance, or event …L19 sl.
– WUSS an ineffectual or incompetent person …1960s sl., orig. & chiefly US
– YOYO an unpredictable or inconsistent person whose moods and actions go up and down; hence, a fool; an idiot, a dolt; a stupid person; an obnoxious person; an incompetent, or undesirable person; a jerk …1959 US sl.
incompetent – verbs
– STINK TO HIGH HEAVEN to be despicable or completely incompetent; to be highly ethically dubious …1973 colloq.
incompetent – phrases
– CAN’T FIND ONE’S BUTT WITH BOTH HANDS (IN BROAD DAYLIGHT) used to denote one is stupid or incompetent …Bk2006 US sl.
– COULDN’T RUN A CHOOK RAFFLE IN A COUNTRY PUB lacking in organization abilities; thoroughly incompetent …Bk1999 Aust. sl.
– COULDN’T TRAIN A CHOKO VINE OVER A COUNTRY DUNNY exceptionally incompetent …Bk1999 Aust. sl.
– NOT TO BE ABLE TO DO A THING FOR NUTS to be incompetent at something …1895 colloq.
– ONLY GOT ONE OAR IN THE WATER said of a daydreamer or an incompetent person …Bk1999 Aust. sl.
 
INCOMPETENTLY – adverbs
– HALF-ARSED carelessly, incompetently …1920s sl., orig. US
– HALF-ASS carelessly, incompetently …1920s sl., orig. US
– HALF-ASSED carelessly, incompetently; haphazardly …1920s sl., orig. US
– NOT FOR TOFFEE ineffectually, incompetently; used to denote incompetence …1914 sl.
 
INCOMPLETE – adjectives
– DIMINUTE † diminished, lessened; abated; incomplete, defective​, imperfect …c1475 
​- HALF-ARSED incomplete, not serious, half-hearted …1933 US sl.
– HALF-ASSED incomplete, not serious, half-hearted …1933 US sl.
– HALF-COCKED not fully capable; not completely thought out; unfinished; incomplete …1833 US sl.
– HALF-FACED imperfect, incomplete, half-and-half …1592
– IMPERFECTED † not perfected; incomplete, imperfect …1552
– MANK † deficient, defective, incomplete …1700 Sc.
– WANE † incomplete; not fully formed or properly shaped; of the moon: not full …1456
 
INCOMPLETELY – adverbs
– BY HALVERS incompletely …1867 Amer. dial.
– PARCELLY † in part, partly, incompletely …1509
 
INCOMPREHENSIBILITY – nouns
– ACATALEPSY incomprehensibility …1605
 
INCOMPREHENSIBLE – adjectives
– ACATALEPTIC * incapable of being certainly comprehended or ascertained …1731
– FATHOMLESS that cannot be fully understood; incomprehensible …1645
– GOOFY incomprehensible …1910s US sl.
– HAITHEN outlandish, incomprehensible …1871 Sc.
– IMPERSCRUTABLE † not to be searched out; unsearchable, inscrutable, unintelligible, incomprehensible …1526
– IMPERVESTIGABLE †* that cannot be thoroughly investigated or found out; unintelligible; incomprehensible …1656
– UNCOGITABLE † unintelligible, incomprehensible …1529
– UNCOGNIZABLE unintelligible, incomprehensible …1720
– UNCOGNOSCIBLE unintelligible, incomprehensible …1810
 
INCONCEIVABLE – adjectives
– INCOGITABLE that cannot be thought of; unthinkable, inconceivable …1522
 
INCONCLUSIVE – adjectives
– DUSTY uninteresting, inconclusive, poor …1860
– UNCONCLUDENT † inconclusive …1634
– UNCONCLUDING † inconclusive …a1643
inconclusive – nouns 
– UNCONCLUDENCY † inconclusive argument …1654
 
INCONSEQUENTIAL – adjectives
– DIPSHIT offensive; inconsequential; lacking in intelligence …1968 US sl.
– FLOCCINAUCICAL inconsiderable, inconsequential, trifling …1826
– NOTHING inconsequential …1960 US sl.
inconsequential – nouns 
– FIGURE NINE WITH THE TAIL CUT OFF nothing; something of no account or consequence …1916 Amer. dial.
– FLOCCINAUCITY a matter of little consequence; something worthless …1829
– PEANUT GALLERY a group or individual whose opinion is considered inconsequential …20C Amer. sl.
– SMALL BEER something of little consequence or importance …1777 UK sl.
– SMALL POTATOES something of little consequence …1838 US sl.
inconsequential – person 
– ASS-BUCKET a contemptible or inconsequential fellow …1953 Amer. sl.
– BIM a thug; a large, stupid man; one who is inconsequential or contemptible; a bozo …1924 US sl.
– BIMBO a thug; a stupid, inconsequential or contemptible fellow …1918 US sl. 
– DIPSHIT a person of no consequence and no intelligence; a stupid jerk, an oaf …1962 US sl.
– DUFLICKET an inconsequential person, esp. a cadet …1878 US military academy usage
– GIZMO a foolish or inconsequential man …1942 US sl., esp. Navy usage
– HAM AND EGGER an average, inconsequential, or mediocre person; a person who is below par, a second-rate person; a stupid, incompetent, or inferior person; an oaf …1919 US sl.
– HERBERT a stupid, foolish, ridiculous, or inconsequential person …1960 Brit. sl.
– HERRING a worthless, foolish, offensive, or inconsequential person …1575 sl.
– LITTLE CASINO a small or inconsequential person; a hanger-on …1904 US sl.
– MICKEY MOUSE a small, timid, inconsequential, or foolish person …1941 
– MOKE a stupid fellow, a dolt, a blockhead; a foolish or inconsequential fellow …1855 Eng. dial. & sl.
– MOKES a foolish or inconsequential fellow; a stupid fellow …1985 Amer. sl.
– MUNCHKIN a menial employee or inconsequential person …1980s US sl.
– SPARROW-FART an inconsequential or unimportant person …1922 Irish sl.
– WHIPPERSNAPPER a person of no consequence …Bk1913-17 Amer. dial.
inconsequential – verbs
– MATTER A DIFFERENCE to be of no importance or consequence …1934 Amer. dial.
 
INCONSIDERABLE – adjectives
– EATHLY † inconsiderable, slight, trifling …c890
– FLOCCINAUCICAL inconsiderable, inconsequential, trifling …1826
 
INCONSIDERATE – adjectives
– ASOCIAL inconsiderate or hostile to other people …1883 colloq.
– BIRD-WITTED lacking the faculty of attention; having no concentration; flitting from subject to subject; easily imposed on;  thoughtless, inconsiderate …1658
– CHICKEN thoughtless or inconsiderate …20C Amer. sl.
– HAND-RACKLE careless, acting without consideration; active, ready …1822 Sc.
– INCOGITANT thoughtless, not thinking; inconsiderate; characterized by want of thought …1628
– INSUBID †* rash, inconsiderate, heady …1656
– RABBISH † unruly, turbulent; inconsiderate, rash; rough or precipitate in action …1387
– VOLAGE giddy, foolish; fickle, inconstant, inconsiderate …a1366
– VOLISH † giddy, inconsiderate …1759 Sc.
inconsiderate – person
– BLUITER a coarse, clumsy, inconsiderate, blundering fellow …Bk1911 Sc.
– BOOR a rustic, a yokel; a clumsy or unrefined person; a rude, ill-mannered, inconsiderate person …L16
inconsiderate – verbs 
– RAP OFF to speak inconsiderately; to let out secrets …Bk1905 Eng. dial.
 
INCONSIDERATELY – adverbs
– HAND OVER HEAD indiscriminately, inconsiderately, without calculating consequences …1824 Sc.
– ON HEAD † headlong, precipitately, hastily, rashly, inconsiderately …1565-73
– UPON A HEAD † headlong, precipitately, hastily, rashly, inconsiderately …1579-80
– UPON HEAD † headlong, precipitately, hastily, rashly, inconsiderately …1555
 
INCONSISTENT – adjectives
– ALL OVER THE BALLPARK very unfocused and inconsistent; confused …Amer. sl.
– ALL OVER THE LOT very unfocused and inconsistent; confused …Amer. sl.
– ALL OVER THE MAP very unfocused and inconsistent; confused …Amer. sl.
– OFF THE TRACK misbehaving, making mistakes, being inconsistent …20C sl.
– OFF TRACK misbehaving, making mistakes, being inconsistent …20C sl.
– UNAGREEABLE † unconformable or unsuitable to; inconsistent or incongruous with …1550
inconsistent – person
– YOYO an unpredictable or inconsistent person whose moods and actions go up and down; hence, a fool; an idiot, a dolt; a stupid person; an obnoxious person; an incompetent, or undesirable person; a jerk …1959 US sl.
 
INCONSISTENTLY – adverbs
– UNAGREEABLY † inconsistently …1546
 
INCONSOLABLE – adjectives
– UNCOMFORTABLE † incapable of being comforted; inconsolable …1592
 
INCONSOLABLENESS – nouns
– UNCOMFORTABLENESS † inconsolableness …a1539
 
INCONSOLABLY – adverbs
– UNCOMFORTABLY † inconsolably …a1548
 
INCONSPICUOUS – adjectives
– UNKENNABLE imperceptible, inconspicuous …Bk1905 Eng. dial.
– UNKENSPAK inconspicuous, obscure …Bk1905 Eng. dial.
 
INCONSTANCY – nouns
– TICKLENESS † insecurity, instability; critical situation, precariousness; inconstancy; uncertainty …c1390
– UNCONSTABILITY want of stability; inconstancy; changeableness …1611
– UNCONSTANCE † inconstancy …c1449
– UNCONSTANTNESS † inconstancy …1551
– UNCONSTANTY † inconstancy, changeableness …1563
– VARIATION † inconstancy; variableness …1509
– VARIOUSNESS † changeableness; inconstancy; variability …1607
 
INCONSTANT – adjectives
– SKITTISH fickle, inconstant, changeable; tricky, difficult to deal with or manage …1601
– TICKLE † not to be depended on; uncertain; unreliable; changeable; inconstant; capricious; fickle …a1300 obs. exc. Eng. dial.
– VAGARIOUS † variable, inconstant, changing …1798
– VARIANT * of persons: changeful in disposition or purpose; inconstant, fickle …c1386
– VARIOUS † of persons: changeable in character; inconstant, unstable; fickle …1636
– VERSATILE * of persons: fickle, inconstant …1682
– VOLAGE giddy, foolish; fickle, inconstant, inconsiderate …a1366
– WANKLE † unsteady, insecure; changeable, unsettled, precarious; inconstant, wavering; also, weak in health, delicate, sickly …c888 obs. exc. Eng. dial.
– WEATHERCOCKY fickle, changeable, inconstant …1886
inconstant – person 
– WAGTAIL † a term of contempt for a profligate or inconstant woman; hence, a wanton woman, a prostitute, a harlot, a courtesan …1592
inconstant – verbs
– BELLWAVER to fluctuate, to waver, to vacillate, to be inconstant …1820 Sc.
 
INCONVENIENCE – nouns
– AGGRO a source of annoyance or inconvenience …1969 sl.
– AGRO a source of annoyance or inconvenience …1969 sl.
– DAMAGE † a disadvantage, inconvenience, trouble …1398
– FAIZE inconvenience, annoyance …1866 Sc.
– FASH trouble, vexation; bother, annoyance, disturbance; inconvenience; fuss, pother; also, something that gives trouble …1714 Sc. & Eng. dial.
– ILL-CONVENIENCE inconvenience …1875 Eng. dial.
– ILL-CONVENIENCY inconvenience …1875 Eng. dial.
– MALEASE † absence of ease; uneasiness, discomfort; inconvenience, annoyance; disquiet; distress, trouble …a1300
– NAUSE an inconvenience; a difficulty; an unpleasant person or thing …1977 Brit. sl.
– NAUZE an inconvenience; a difficulty; an unpleasant person or thing …1977 Brit. sl.
inconvenience – verbs 
– DAMNIFY * to cause, injury, loss, or inconvenience to; to injure, to damage, to hurt; to inflict injury upon; to wrong …1512 (very common in the 17th century)
– DISABUNDANCE to deprive, to inconvenience, to discommode …1942 Amer. dial.
– DISANNUL to disarrange, to inconvenience, to interfere with, to injure …1857 Eng. dial.
– DISCOMFIT to inconvenience, to bother …1913 Amer. dial.
– DISFURNISH to deprive, to inconvenience, to discommode …1886 Amer. dial.
– FAIZE to annoy, to inconvenience, to disturb, to ruffle …1866 Sc.
– FASH to trouble, to afflict; to inconvenience, to vex, to annoy by importunity, to weary …1533 Sc. & Eng. dial.
– ILL-CONVENIENCE to inconvenience …Bk1905 Eng. dial.
– JAM to put about or cause inconvenience; to corner or press in argument …1862 Sc.
– MAGGLE to impede, to hinder, to inconvenience …a1813 Sc.
– MISPUT to inconvenience; to discomfit …1942 Amer. dial.
– PUT SOMEONE’S NOSE OUT OF JOINT to annoy; to upset the plans of; to inconvenience; to disconcert …1576 UK
– SNAG to impede, to inconvenience …1833
 
INCONVENIENCED – adjectives
– HAND-BOUND hampered, put to inconvenience …Bk1905 Eng. dial.
 
INCONVENIENT – adjectives
– ILL-CONVENIENT inconvenient, ill-suiting …1740
– ILL-EASED inconvenient …Bk1905 Sc.
– ILL-GAIN inconvenient …Bk1905 Eng. dial.
– MISCONVENIENT inconvenient …1893 Sc. & Eng. dial.  
– INCONVENE inconvenient …1899 Sc.
– ONCONVENIENT inconvenient …Bk1905 N. Ireland
– ONE EYED inconvenient, out of the way, neglected …1896 Eng. dial.
– ONKED uncouth, awkward, shy, ill-behaved; untidy; ugly; unpleasant, uncomfortable, inconvenient …1783 Eng. dial.
– UGLY awkward; inconvenient …1881 Eng. dial.
– UNBAIN inconvenient, awkward …1828 Eng. dial.
– UNBANE awkward, inconvenient; of a road: distant, lonely …1899 Eng. dial.
– UNCANNY awkward, unskilful; careless; imprudent; inconvenient …1775 Sc. & Eng. dial.
– UNCHANCY inconvenient, ill-timed …1860 chiefly Sc.
– UNCONVENIENT inconvenient …Bk1905 Eng. dial.
– UNGAIN awkward, inconvenient, unfavourable, unprofitable; unsuitable …1790 Eng. dial.
– UNGAINLY inconvenient, unhandy; unsteady; not going or working well; insufficient …1825 Sc. & Eng. dial.
– UNHANTY † inconvenient …Bk1905 Sc.
– UNIQUEME † unpleasant, inconvenient …a1250
– UNKED uncouth, awkward, shy, ill-behaved; untidy; ugly; unpleasant, uncomfortable, inconvenient …1783 Eng. dial.
– UNKID uncouth, awkward, shy, ill-behaved; untidy; ugly; unpleasant, uncomfortable, inconvenient …1783 Eng. dial.
– WELCOME AS FROST IN HARVEST, AS very inopportune, inconvenient, or inappropriate …1897 Sc.
 
INCORPORATE – verbs
– ACCORPORATE †* to unite, to incorporate …1612
– ADCORPORATE †* to unite, to incorporate …1732
– MAISE to mix or unite in one mass; to incorporate …Bk1905 Sc. & Eng. dial.
– MEISE to mix or unite in one mass; to incorporate …Bk1905 Sc. & Eng. dial.
 
INCORRECT – adjectives
– ACYROLOGICAL †* incorrect in use of words …1626
– ALL WET incorrect; wrong …1920s Amer. sl.
– OFF BASE incorrect; inaccurate …1947 US sl.
– OFF BEAM wholly incorrect …1940s sl., orig. US
– OFF ONE’S EGGS straying; hence, wide of the mark, incorrect, inaccurate, mistaken, in error …1792 Sc.
– OFF THE BEAM wholly incorrect …Bk1942 sl., orig. US
– UP THE POLE confused; incorrect …Bk1999 Aust. sl.
– WACKY incorrect, unreliable; eccentric …1930s sl., orig. US
– WAY OFF BEAM wholly incorrect …1940s sl., orig. US
incorrect – verbs 
– BODGE to do something incorrectly, but so as to make it appear right; to do something or make something in a sloppy manner …Aust. sl.
– FLUB UP to do something incorrectly; to mess up a procedure …Bk2006 US sl.
– FLUFF to make an error; to do something incorrectly …Bk2006 US sl.
– HAVE THE WRONG BIG BY THE EAR to take an incorrect view; to arrive at the wrong conclusion, solution, etc.; to be mistaken …1536
incorrect – phrases
– SOMETHING IS ROTTEN IN THE STATE OF DENMARK there is a corrupt element underlying a situation; also, something is incorrect or unsatisfactory …1603
 
INCORRECTLY – adverbs
– SINISTROUSLY in an erroneous manner; incorrectly, wrongly, perversely; awkwardly …1581
 
INCORRIGIBLE – adjectives
– ACOLASTIC † incorrigible, not better by chastisement …1676
– NE’ER-DO-WELL good-for-nothing, worthless; incorrigible …a1773 
– OUTDACIOUS impudent, shameless, audacious, bold, incorrigible; of things: very bad, shocking …1885 Eng. & Amer. dial.
– OWDACIOUS impudent, shameless, audacious, bold, incorrigible; of things: very bad, shocking …1847 Eng. & Amer. dial.
incorrigible – person 
– BARNACLE an incorrigible person …Bk1898 Eng. dial.
– HARD NUT an incorrigible person; a wilful, unruly, or uncontrollable person …1900 sl. 
– MESS an objectionable or foolish person; unruly or incorrigible person; an oaf; a hopelessly stupid person; a mentally confused person …1936 sl.
 
INCORRUPTIBLE – adjectives
– IMMARCESCIBLE * unfading; incorruptible, imperishable …1542
incorruptible – person
– SQUARE COVE an incorruptible man …Bk1865 criminals’ sl. 
 
INCORRUPTIBLENESS – nouns
– IMMARCESCENCE † unfadingness, incorruptibleness …1658