Reverse Dictionary – STUPID – ADJECTIVES

– acting stupid BOJANGLING Bk2006 US sl.
– agreeing in stupidity; displaying ignorance or foolishness by all UNASINOUS 1656
– driven stupid DILLED 1851 Eng. dial.
– having a look of stupidity OAF-LOOKING Bk1905 Sc.
– rendered stupid, baffled, confused BOFFLED 1876 Eng. dial.
– somewhat stupid, silly, or foolish; somewhat slow of intellect, in some degree deranged DAFTISH 1825 Sc. & Eng. dial.
– stupid ADDLE Bk1898 Eng. dial.
– stupid AMIABLE M19 US sl.
– stupid AMOEBA-BRAINED a1967 Amer. sl.
– stupid ARSEY 2000s sl.
– stupid B.B.-BRAINED 1960s US sl.
– stupid BATTLE-HEADED Bk1898 Eng. dial.
– stupid BRIGHT AS A TWO-WATT BULB Bk1999 Aust. sl.
– stupid CHUPID 1922 Amer. dial.
– stupid CLODPOLISH 20C US colloq.
– stupid CUNNING AS A DEAD PIG 1705 colloq.
– stupid DAMMERTIT Bk1900 Sc.
– stupid DIK 1978 S. Afr.
– stupid DOF S. Afr. colloq.
– stupid DORKY 20C teen & high school sl.
– stupid DOWSY a1513 Sc.
– stupid DUMBSHIT 1967 US sl.
– stupid EROS AND CUPID 1990s rhyming sl.
– stupid FLATHEADED Bk2006 US sl.
– stupid FUZZ-BRAINED 1969 US sl.
– stupid HALF-HARD 20C Brit. sl.
– stupid HALF-MAST 20C Brit. sl.
– stupid HAME-HEADED 1937 Amer. dial.
– stupid LEATHER-BRAINED 20C US colloq.
– stupid LIGHT 1967 African-American sl.
– stupid LOBBERHEADED 20C US colloq.
– stupid LONG-EARED 1910s sl.
– stupid LUBBER-HEADED 1849 Eng. dial.
– stupid LUBBERLY M16
– stupid LUNKY 1940s US sl.
– stupid MONGISH 1980 teen sl.
– stupid NOT ENOUGH SENSE TO GO TO MILL 1969 Amer. dial.
– stupid NOT KNOW ONE’S ARSE FROM ONE’S ELBOW Bk1999 Aust. sl.
– stupid NUMBER THAN A HAKE 1979 Amer. dial.
– stupid PADDY AND MICK 20C UK rhyming sl. for ‘thick’
– stupid PADDY QUICK M19 rhyming sl. for ‘thick’
– stupid POT-HEADED 1930 Amer. dial.
– stupid SUMPHISH 1728 Sc. & N. Eng. dial.
– stupid THREE BRICKS SHY OF A LOAD 1970s US sl.
– stupid THREE POTS SHORT OF A SHOUT Bk1999 Aust. sl.
– stupid WANTING IN THE UPPER STORY 1885 sl.
– stupid and heedless HAREBRAIN 1566
– stupid and heedless, reckless; rash, wild, mad HARE-BRAINED 1548
– stupid and irritating DANGFOOL L19 colloq.
– stupid and irritating; damnably foolish; silly DAMFOOL;  DAMN-FOOL c1895 colloq.
– stupid and irritating; silly DARNFOOL 1780s
– stupid and unappealing WET 1916 sl.
– stupid, asleep BURIED IN A NAPKIN 19C sl.
– stupid, awkward GARRICK B1900 Eng. dial.
– stupid, awkward, clumsy DORBELISH;  DORBELLISH 1847 Eng. dial.
– stupid, awkward, clumsy SCHLEPPY 1970s US sl.
– stupid, bewildered DEASKED;  DESKIT B1900 Sc.  
– stupid; block-headed SAWDUST-BRAINED E20 US sl.
– stupid, brainless SHIT-BRAINED 1970s sl.
– stupid, bull-headed, stubborn, obstinate BUTT-HEADED 1855 Amer. dial.
– stupid, careless, foolish GLAIKIT 1889 Sc.
– stupid, clumsy GORMIN’ Bk1913-17 Amer. dial.
– stupid, confused BURBLE-HEADED 19C Sc.
– stupid, confused HEXED 1990s sl.
– stupid, confused, distressed, bewildered BEDWADDLED 1790 Eng. dial.
– stupid, confused, distressed, bewildered BETOTLED;  BETOTTLED 1790 Eng. dial.
– stupid, confused, distressed, bewildered BEWATTLED 1790 Eng. dial.
– stupid, confused, muddled ADDLE-BRAINED 1866
– stupid, confused, muddled ADDLE-HEADED a1670
– stupid, confused, muddled ADDLE-PATED 1630
– stupid; contemptible SKIT-BRAINED 1553
– stupid; corny CORNBALL Bk2006 US sl.
– stupid, crazy LUNCHING 1990s sl.
– stupid, crazy MAD AS A BRUSH 1945 UK sl.
– stupid; crazy, eccentric A FEW PICKLES SHORT OF BARREL 1941 sl.
– stupid; crazy, eccentric A FEW SANDWICHES SHORT OF A PICNIC 20C sl.
– stupid, crazy, eccentric NOT THE FULL QUID 1944 Aust. & NZ sl.
– stupid; crazy, eccentric TWO BRICKS SHORT OF A LOAD 20C sl.
– stupid; crazy; mentally deficient SHORT OF A SHEET B1900 sl.
– stupid, crazy, not completely sane TWO APPLES SHORT OF A BISCUIT 1992 UK sl.
– stupid, dazed, slow DAISKET 1880 Sc.
– stupid, dazed, unaware LUNCHED-OUT 1970s US sl.
– stupid, deficient in intellect NOT HAVE ALL ONE’S BUTTONS 1860 sl.
– stupid, deficient in intellect; half-intelligent HALF-HEADED 1621-31
– stupid, dense SHADY M19 sl., orig. university
– stupid, doltish CALVISH 1570
– stupid, doltish DAUK 1866 obs.
– stupid, doltish LAME-BRAINED 1922 US sl.
– stupid, doltish NAIL-HEADED 1936
– stupid, doltish PUTTISH 1738 obs.
– stupid, doltish; blockheaded JUGHEADED 1939 Amer. sl.
– stupid, doltish; clumsy, awkward LOOBY 1953 Amer. dial.
– stupid, doltish, dull; stubborn LOGGEREDY-HEADED 1964 Amer. dial.
– stupid, doltish, obstinate, asinine ASINARY 1731 obs.
– stupid, dull AGGERHEADED Bk1898 Eng. dial.
– stupid, dull BEETLE-HEADED 1553-87
– stupid, dull DAKES-HEADED 1893 Eng. dial.
– stupid, dull DINSH Bk1900 Eng. dial.
– stupid, dull DOWFART E18 Sc. arch.
– stupid, dull DULL AS A BEETLE 1520
– stupid, dull DULT a1250 obs.
– stupid, dull DUMB AS A BEETLE 1566
– stupid, dull FAT-HEADED c1510
– stupid, dull FROST-BRAINED 1592 obs.
– stupid, dull HAMMER-HEADED 1552
– stupid, dull HEAVY-HEADED 1590
– stupid, dull LOGY 1899 Amer. dial.
– stupid, dull MENSO Bk1970 US high school sl.
– stupid, dull MONG 1970s sl.
– stupid, dull MONGIE;  MONGY c1975 teen sl.
– stupid, dull MOSSY c1595 jocular usage
– stupid, dull NEEP-HEADED 1844 Sc.
– stupid, dull NEIP-LIKE 1897 Sc. 
– stupid, dull NUMB-HEADED 1856 Amer. dial.
– stupid, dull SAD AS ANY MALLET 1645
– stupid, dull STOCKISH 1600
– stupid, dull THICK-LISTED 1777 Eng. dial.
– stupid, dull, absent-minded LUNCHY 1960s US college sl.
– stupid, dull; absurd DEAF c1440 obs.
– stupid, dull, doltish; stubbornly at odds LOGGERHEADED 1806 Amer. dial.
– stupid, dull, doltish; stubbornly at odds LOG-HEADED 1889 Amer. dial.
– stupid, dull, doltish; with brains made of clay CLAY-BRAINED 1596
– stupid, dull, dumb NUMB 1966 Amer. dial.
– stupid, dull, foolish LOLO 1938 Hawaii
– stupid, dull, foolish, silly LEFT-WITTED 1616 rare
– stupid, dull, half-witted SOFT-ARSED 1999 UK sl.
– stupid, dull, idiotic DAFF Bk1900 Eng. dial.
– stupid, dull; ignorant SWIFT Bk1970 US students’ sl.
– stupid, dull, inactive, spiritless DEAD-ALIVE 1591 chiefly US
– stupid, dull, inactive, spiritless DEAD-AND-ALIVE a1862 chiefly US
– stupid, dull; inert of mind or action DASTARDLY 1567 obs.
– stupid, dull, slow DUMMEL 1878 Eng. dial.
– stupid, dull, slow of comprehension THICK IN THE HEAD 1871 Sc.
– stupid, dull, slow of understanding, inapprehensive HEAVY c1300 obs.
– stupid, dull; slow to learn or understand; lacking in intelligence DUNCH 1825 colloq. obs.
– stupid, dull, slow-witted DUMPISH 1545 obs.
– stupid, dull, slow-witted; wandering in mind IDLE-MINDED 1967 Amer. dial.
– stupid, dull, sluggish DEAD-LIVERED Bk1900 Eng. dial.
– stupid, dull, thick-headed, of slow wit FAT-WITTED 1596
– stupid, dull, uninspiring LUNCHBUCKET 1950s US sl.
– stupid, dull, unintelligent; slow to learn or understand DUNSTICAL 1592 rare
– stupid, dull, witless MIZZLE-WITTED 1935 Amer. dial.
– stupid, dull-witted; confused in mind MUDDY-BRAINED 1634
– stupid, dull-witted, doltish; like a dunce or blockhead DUNCICAL 1588 rare
– stupid; dumb DUMBSKI Bk2006 US sl.
– stupid, dunderheaded JOBBERNOWL 1828 colloq.
– stupid, easily imposed on BLAIT Bk1911 Sc.
– stupid; easily manipulated PUTTISH 1738 obs.
– stupid, easily taken in or influenced MUSH-HEADED 1884 US sl.
– stupid, eccentric, mad, insane YARRA 1943 Aust. sl.
– stupid, empty-headed; foolish and noisy RATTLE-HEADED 1647
– stupid, empty-headed, rattle-brained THREE POTS SHORT OF A SHOUT Bk1999 Aust. sl.
– stupid, fat-headed WOMBAT-HEADED 1971 Aust. sl.
– stupid, feeble-minded BRAIN-DEAD 1981 sl., orig. US
– stupid, foolish BALD-HEADED L19 African-American sl.
– stupid, foolish BEDAFT 1572 obs.
– stupid, foolish BUFFLE-BRAINED 1900 Amer. dial.
– stupid, foolish CEMENT-HEADED 1962 Amer. sl.
– stupid, foolish CHUCKLE-HEADED M18
– stupid, foolish CORKY 2000s African-American sl.
– stupid, foolish DINGBATS 1950 Aust. sl.
– stupid, foolish DOTARD c1405
– stupid, foolish DOTARDLY 1632
– stupid, foolish DOTTERED 1581 rare, chiefly Sc.
– stupid, foolish DOTTEREL 1577 obs.
– stupid, foolish DUSI c1175 obs.
– stupid, foolish FAT-BRAINED L18 sl.
– stupid, foolish FISH 1980 Amer. dial.
– stupid, foolish HAWKED 1790 Sc.
– stupid, foolish IVORY-DOMED 1932 US sl.
– stupid, foolish KNOCK-SOFTLY 1887 Eng. dial.
– stupid, foolish MUSH-FACED 1910s sl.
– stupid, foolish NARROW Bk1902 sl.
– stupid, foolish OAFING Bk1905 Eng. dial.
– stupid, foolish SAGGER-YEDDED Bk1904 Eng. dial.
– stupid, foolish SAPPY M17 sl.
– stupid, foolish SHORT OF NUMBERS IN THE UPPER HOUSE Bk1999 Aust. sl.
– stupid, foolish SILLY-ARSE;  SILLY-ASS;  SILLY-ASSED 1910s sl., chiefly US
– stupid, foolish SILLY-BORN 1940s sl.
– stupid, foolish STULTY1387-8 obs. rare
– stupid, foolish TACOU 20C W. Indies sl.
– stupid, foolish TAKE YOUR PICK 1990s rhyming sl. for ‘thick’
– stupid, foolish UP AGAINST THE WALL 1960s US college sl.
– stupid, foolish, awkward GUMP-HEADED 1722 Amer. dial.
– stupid, foolish; behaving like a dunce DUNCING 1584 obs.
– stupid, foolish; blundering DUNDERING 1840
– stupid, foolish, blundering, clumsy MAFFLING Bk1905 Eng. dial.
– stupid, foolish, confused MAZLING 1885 Eng. dial.
– stupid, foolish; crazy DAMP L19 sl.
– stupid, foolish, crazy LUNCH 1960s sl.
– stupid, foolish, daft CAKE L19 sl.
– stupid, foolish, deficient in reason or sense DOUGH-BRAINED 2007
– stupid, foolish, muddle-headed DUNT 1787 Eng. dial.
– stupid, foolish, muddle-headed DUNTY 1960 Eng. dial.
– stupid, foolish; not having all one’s wits HALF-WITTED 1712
– stupid, foolish, silly ANSEROUS 1826
– stupid, foolish, silly GUPPY c1930 sl.
– stupid, foolish, silly ANSERINE 1607
– stupid, foolish, silly, lacking sense or judgement DOTISH 1509
​- stupid; foolish; silly; lacking common sense SACKLESS 1878 Sc. & Eng. dial.
– stupid, foolish, silly, light-headed, witless GOOSEY 1919 Amer. dial.
– stupid, foolish, silly, witless SAP-HEADED 1665
– stupid, foolish, slow-witted DUMB-ASS;  DUMB-ASSED 1957 US sl.
– stupid, foolish, slow-witted DUNDERHEADED 1692
– stupid, foolish, slow-witted LEATHER-HEADED a1668
– stupid, foolish, slow-witted, half-witted TAIVERT;  TAVERT 1818 Sc.
– stupid, foolish, slow-witted, unintelligent BIRD-BRAINED 1922 sl.
– stupid, foolish, slow-witted, unintelligent CLUELESS 1943 sl.
– stupid, foolish, slow-witted, unintelligent DIM 1892 sl.
– stupid, foolish, slow-witted, unintelligent DIM-WITTED 1940 sl.
– stupid, foolish, slow-witted, unintelligent DOPEY;  DOPY 1895 orig. US
– stupid, foolish, slow-witted, unintelligent DOZEY;  DOZY 1924 Brit. sl.
– stupid, foolish, slow-witted, unintelligent DUMB 1823 sl.
– stupid, foolish, slow-witted, unintelligent GORMLESS c1746 sl.
– stupid, foolish, slow-witted, unintelligent MEAT-HEADED 1949 sl., chiefly US
– stupid, foolish, slow-witted, unintelligent MULLET-HEADED 1857 US sl.
– stupid, foolish, slow-witted, unintelligent MUTTON-HEADED 1768 sl.
– stupid, foolish, slow-witted, unintelligent THICK a1800 sl.
– stupid, foolish, soft-headed HAGGIS-HEADED 1715 Sc.
– stupid, foolish, unwise; void of wisdom, understanding, or intellect INSIPIENT 1528 rare
– stupid, foolish, vacantly silly, besotted, infatuated FATUOUS 1633
– stupid, foolish; wanting or lacking thought LACK-THOUGHT 1829
– stupid, foolish, weak; foolishly sentimental SAWNEY 1894 Eng. dial.
– stupid, foolish, weak-minded BESOM-HEADED 1864
– stupid, foolish, weak-minded, childish NINNY-NONNY Bk1865 Eng. dial.
– stupid; full of lies FULL OF IT Bk2006 US sl.
– stupid; full of lies FULL OF SHIT Bk2006 US sl.
– stupid; full of lies FULL OF SHIZZLE Bk2006 US sl.
– stupid, gauche GUNGA Bk1970 US sl.
– stupid, giddy AIRHEADED 1976 sl.
– stupid, gullible CHUMP 20C sl.
– stupid, gullible CHUMP-ASS 20C sl.
– stupid, gullible CHUMPISH 20C sl.
– stupid, half-baked SAM-SODDEN;  SAM-ZODDEN 1891 Eng. dial.
– stupid, half-witted, foolish, silly OAF-ROCK’D Bk1905 Eng. dial.
– stupid, half-witted, thoughtless THORTY 1895 Eng. dial.
– stupid, having a large, round head CABBAGE-HEADED 1846 Amer. sl.
– stupid, heavy GALE-HEADED 1810 Eng. dial.
– stupid; idiotic POINTY-HEADED 1968 Amer. sl.
– stupid, idiotic, dull DOOFLESS 1970s US sl.
– stupid, ignorant NOT ENOUGH SENSE TO CARRY GUTS TO A BARREL 1967 Amer. dial.
– stupid, ignorant NOT ENOUGH SENSE TO CARRY GUTS TO A BEAR 1914 Amer. dial.
– stupid, ignorant NOT ENOUGH SENSE TO TOTE GUTS TO A BEAR 1960 Amer. dial.
– stupid; ignorant NOT KNOW ANY MORE THAN ADAM’S OFF-OX 1978 Amer. dial.
– stupid, ignorant, half-witted HALF-FOOL Bk1905 Eng. dial.
– stupid, ignorant, stupid UNCUNNING Bk1905 Eng. dial.
– stupid, imbecile PECK-HEADED 1897 Eng. dial.
– stupid, incompetent, inept DUFFING 1869 colloq. obs.
– stupid, ineffective, feeble in body or mind WAFF;  WAFF-LIKE 1822 Sc.
– stupid; inept; ineffectual LAME 1935 US sl., esp. African-American
– stupid, insane OFF ONE’S KNACKERS 2000s sl.
– stupid, irritating, contemptible, despicable ASSHOLE 1888 US sl.
– stupid, lacking in common sense or intelligence, slightly crazy A BRICK SHORT OF A LOAD 1983 sl.
– stupid, lacking in common sense or intelligence, slightly crazy ONE SANDWICH SHORT OF A PICNIC 1985
– stupid; lacking in common sense or intelligence; mentally deficient A HALFPENNY SHORT OF A SHILLING; A HAPENNY SHORT OF A SHILLING 1939
– stupid, lacking in common sense or intelligence; mentally deficient ONE SPARK PLUG SHORT OF AN ENGINE 1996
– stupid, lacking in common sense or intelligence; mentally deficient SEVERAL BANANAS SHORT OF A MILKSHAKE 1992
– stupid, lacking in common sense or intelligence; mentally deficient SHORT OF A SHEET OF BARK 1885
– stupid, lacking in common sense or intelligence; mentally deficient SHORT OF THE FULL QUID 1960
– stupid, lacking in common sense or intelligence; mentally deficient SIX BRICKS SHORT OF A LOAD 1960
– stupid, large and square-headed MELL-HEADED Bk1905 Eng. dial.
– stupid; lazy TACO 1968 Amer. dial., derogatory
– stupid-looking BLUFFLE-HEADED Bk1911 Sc.
– stupid, mad, crazy LAKES (OF KILLARNEY) 1934 UK imperfect rhyming sl. for ‘barmy’
– stupid, mad, crazy LAKEY;  LAKIE 1934 UK imperfect rhyming sl. (Lakes of Killarney)
– stupid, mad, crazy, eccentric NUT 1906 colloq.
– stupid, mad, eccentric PORANGI M19 NZ (Maori)
– stupid; mindless FUCK-BRAINED Bk2006 US sl.
– stupid, not completely sane A SANDWICH SHORT OF A BISCUIT 1992 UK sl.
– stupid, not cool COB 20C teen & high school sl.
– stupid; oafish CLOD-SKULLED 18C Brit. colloq.
– stupid; oafish CLUCKY 20C US colloq.
– stupid; obnoxious; lousy; worthless BIRDTURD Bk2006 US sl.
– stupid, obnoxious, or contemptible DOUCHEY 1991 US sl.
– stupid, obnoxious, or offensive DIPSHIT Bk2006 US sl.
– stupid, odd GACKY 2000s sl.
– stupid, of lower than average intelligence TINNY SHORT OF A SIX-PACK Bk1999 Aust. sl.
– stupid or sluggish WIMPY Bk1964 US students’ sl.
– stupid; ridiculous CRACKBRAINED Bk2006 US sl.
– stupid; scatterbrained DIZZY Bk2006 US sl.
– stupid, self-willed (without reference to any religious intolerance) BIGOTED Bk1898 Eng. dial.
– stupid, senseless BUZZARD 1592
– stupid, senseless BUZZARDLY 1561 obs.
– stupid; senseless FUCKHEADED Bk2006 US sl.
– stupid, senseless HEADLESS 1586
– stupid, senseless, idiotic SART-AND-FAIR 1746 Eng. dial.
– stupid, senseless, idiotic ZATENFARE 1746 Eng. dial.
– stupid; sentimental; nonsensical MUSH-BRAINED 1980s sl.
– stupid, silly AIRBRAINED Amer. sl.
– stupid, silly DAMISHT Bk1900 Sc.
– stupid, silly, bewildered; dull, inactive, doltish DAUSEY;  DAWSIE;  DAWSY 1889 Sc. & Eng. dial.
– stupid, silly, dull, clownish, mischievous AUVISH;  AWVISH;  HAWFISH 1819 Eng. dial.
– stupid, silly, dull, clownish, mischievous AWF-STRUCKEN Bk1898 Eng. dial.
– stupid, silly; extremely eccentric SICK 20C Aust. sl.
– stupid, silly, foolish RATTLE-BRAINED 1868 Sc.
 stupid, silly, foolish TWITTISH 1969 chiefly UK
– stupid, silly, foolish, half-witted, mad DAFT c1325 Sc., Ireland, and Eng. dial.
– stupid, silly, foolish, imbecile DAUPET;  DAWPIT 1788 Sc.
– stupid, silly, foolish; giddy; having a head or brains like wool FLOCK-PATED 1640 obs.
– stupid, silly, foolish; having little sense or shrewdness LEAN-WITTED 1593
– stupid, silly, foolish; resembling a twit TWITTY 1967
– stupid, silly, weak of intellect CAKEY;  CAKY 1879 Eng. dial.
– stupid; simple SOFT-HEADED 1653 colloq.
– stupid, simple-minded BRICK SHORT OF A LOAD Bk1999 Aust. sl.
– stupid, sleepy, esp. from want of rest or from over-drinking MAWMSEY 1879 Eng. dial.
– stupid, slow to learn or understand; uncomprehending DUNCIFIED c1600
– stupid, slow-witted DOWF a1522 Sc. & N. Eng. dial.
– stupid, slow-witted, ignorant DARK a1660 sl.
– stupid, soft SAM-ZODY;  ZAM-ZODY 1889 Eng. dial.
– stupid, soft SAM-ZOED;  ZAM-ZOED Bk1904 Eng. dial.
– stupid; stupefied BAZED Bk1911 Sc.
– stupid; stupefied OBSTUPEFACT 1601 obs. rare
– stupid, thick in the skull, dense RAM-SKULLED 1793 Sc.
– stupid, thick-headed BEEF-BRAINED 1627 obs.
– stupid, thick-headed BONE-HEADED 1903 US colloq.
– stupid, thick-headed CULVER-HEADED 19C Eng. dial.
– stupid, thick-headed GROUT-HEADED 1578 obs. exc. Eng. dial.
– stupid, thick-headed LUNK-HEADED 1885 colloq.
– stupid, thick-headed ZAWKIN Bk1904 Eng. dial.
– stupid, thick-headed, dull RAM-HEADED 1813
– stupid, thick-headed, dull in wits, doltish BEEF-WITTED 1606
– stupid, thick-headed, muddled BOTHER-HEADED 1872
– stupid; time-wasting PAINT 2000s African-American sl.
– stupid, unaware; socially unacceptable OUT TO LUNCH 1955 US sl.
– stupid, unintelligent, dim-witted; slow to learn or understand DUNCELY 1757
– stupid, unintelligent; lacking in or incapable of learning DUNCEY 1743
– stupid, unintelligent; slow to learn or understand DUNCISH 1805
– stupid, unpleasant DAGGY 20C Aust. sl.
– stupid, unpopular DROOLY 1940s US sl.
– stupid, untrained, immature CALFISH L16
– stupid, useless DADLESS Bk1900 Eng. dial.
– stupid; very angry RAATID 1940s W. Indies. & Black British sl.
​- stupid, very awkward or clumsy DORBELLICAL 1592 nonce word obs.
– stupid; very ignorant KNOW-NOTHING a1825
– stupid, weak-minded BESOM-SCAUPED Bk1898 Eng. dial.
– stupid; wild, unsteady UNGAIN 1895 Eng. dial.
– stupid, witless RAMISED;  RAMISHED a1838 Sc.
– stupid, wooden-headed, dense or obtuse in intellect TIMBER-HEADED 1666
– stupid; worthless WACK 20C sl.
– very stupid DEAD-ASS STUPID 1985 Amer. sl.
– very stupid DEAD FROM THE NECK BOTH WAYS 1924 Amer. sl.
– very stupid DEAD FROM THE NECK UP 1911 Amer. sl.
– very stupid DEAD-TO-THE-NECK 1952 Amer. sl.
– very stupid DON’T KNOW ENOUGH TO POUND SAND IN A RAT-HOLE Bk1913-17 Amer. dial.
– very stupid DUMB AS A MUD FENCE 2004 US sl.
– very stupid DUMB AS TWO SHORT PLANKS 1989 Can. sl.
– very stupid EAT UP WITH THE DUMB ASS 1984 US sl.
– very stupid IGNORANT AS PADDY’S PIG 1974 NZ sl.
– very stupid NOT ENOUGH SENSE TO EAT PEAS OUT OF A BOTTLE 1970 Amer. dial.
– very stupid NUTTY AS A FRUITCAKE Bk2006 US sl.
– very stupid SILLY AS A TWO-BOB WATCH 1954 Aust. sl.
– very stupid THICK AS PIGSHIT 1999 UK sl.
– very stupid THICK AS TWO SHORT PLANKS 1984 UK sl.
– very stupid, boring, or feeble DEADASS 20C Amer. sl.
– very stupid; brainless VEGETABLE 1970s US college sl.
– very stupid, foolish, or silly SILLY AS A WET HEN 1980s NZ sl.
– very stupid, foolish, or silly SILLY AS A WHEEL 1950s Aust. sl.
– very stupid; having no knowledge; dense DEAD 1900s sl.
– very stupid, ignorant NOT ENOUGH SENSE TO LAP ALUM AND DROOL 1969 Amer. dial.
– very stupid, ignorant NOT KNOW AS MUCH AS A LAST YEAR’S BIRD NEST 1966 Amer. dial.
– very stupid, mad CRAZY AS A TWO-BOB WATCH 1963 Aust. sl.
– very stupid, not cool GAY 20C teen & high school sl.
– very stupid or dull DUMB AS A DEEP SEA OYSTER Bk1913 Amer. dial.
– very stupid or ignorant NOT KNOW SIC ‘EM 1907 Amer. dial.
– very stupid or silly SILLY AS A BAG 1930s Aust. & NZ sl.
– very stupid or silly SILLY AS A HATFUL OF WORMS 1950s sl., orig. Aust.
– very stupid or silly SILLY AS A WOOLWORTH’S WATCH 1940s Aust. sl.
– very stupid or silly; crazy DAFT AS A BRUSH1945 sl., orig. Eng. dial.
– very stupid or uneducated PIG-IGNORANT 1956 colloq.