Reverse Dictionary: ENTHUSIASM

ADJECTIVES
1400 — YEVEROUS eager, zealously enthusiastic, impetuous → obs.
1535 — JEALOUS devoted, eager, zealous, zealously enthusiastic → obs.
1586 — FRENZICAL frenzied, raging; wildly enthusiastic; frantic → obs.
1664 — AGOG excited, eagerly expectant, enthusiastic
1664 — EBULLIENT of energy, feelings, influences: overflowing, enthusiastic
1672 — KEEN AS MUSTARD very enthusiastic
1744 — MAD ABOUT enthusiastic about; fond of; having a strong liking for; sexually infatuated → UK
1785 — NUTS ABOUT fond of; enthusiastic about; liking; often implying sexual infatuation
1785 — NUTS ON fond of; enthusiastic about; liking; often implying sexual infatuation
1792 — LACKADAISY lackadaisical; lacking enthusiasm and determination
..19C — DIERNED determined, enthusiastic → Eng. dial.
1819 — ABLAZE highly excited or charged with emotion; passionately enthusiastic or vehement
1833 — EFFERVESCENT vivacious, enthusiastic, cheerful
1836 — HEART AND SOUL devoted and enthusiastic
.M19 — OFF ONE’S NUT infatuated, very enthusiastic → sl.
1859 — COLD lacking enthusiasm, unwilling to participate fully → Amer. dial.
1865 — HOT ON fond of; enthusiastic about; liking
1867 — BIG ON fond of; enthusiastic about; liking → orig. & chiefly US
1868 — WILD ABOUT fond of; enthusiastic about; liking
1880 — UP FOR IT motivated to do something; enthusiastic, ready for anything → African-American sl.
1889 — KEEN ON fond of; enthusiastic about; liking; often implying sexual infatuation
..L19 — GLUED enthusiastic about → US students’ sl.
..20C — CAN-DO positive, enthusiastic, aggressive; confident and resourceful in the face of challenges → sl., orig. US
1902 — BITTEN BY THE BUG obsessively enthusiastic → sl.
1904 — CRAZY ABOUT fond of; enthusiastic about; liking; often implying sexual infatuation
1910 — GAME AS A BADGER very enthusiastic, raring to go, eager → US sl.
1910 — MAFFICKY inclined to be uproariously enthusiastic; frenzied with joy → sl. (Bk.)
1910 — NUTS OVER fond of; enthusiastic about; liking; often implying sexual infatuation
1914 — RAH-RAH characterized by excessive spirit and enthusiasm → US sl.
1918 — JAZZED (UP) excited or enthusiastic → Amer. sl.
1920 — HIPPED ON fond of; enthusiastic about; liking → orig. US
1923 — HOPPED UP full of vigour and enthusiasm → US sl.
1923 — POTTY ABOUT fond of; enthusiastic about; liking; often implying sexual infatuation
1928 — SOLD ON fond of; enthusiastic about; liking → orig. US
1930 — HIGH ON enthusiastic about → sl., orig. US
1940 — MAD FOR IT extremely enthusiastic → sl.
1940 — ON A KICK enthusiastic about → sl., orig. US
1942 — GUNG-HO very zealous; totally committed; dedicated; spirited; enthusiastic → US sl., orig. US Marine Corps usage
1945 — BOFFO very favourable; enthusiastic; said of a critical comment or review → US sl.
1949 — MAD KEEN ON fond of; enthusiastic about; liking
1955 — WILD intensely eager or enthusiastic; exciting → colloq., orig. & chiefly US
1955 — WRAPPED enthralled; overjoyed; pleased; totally amazed by; enthusiastic about → Aust. sl.
1960 — LARGE FOR (SOMETHING) enthusiastic about (something) → Amer. sl.
1960 — OFF ONE’S FACE extremely enthusiastic about → sl.
1961 — GUNGI → GUNGY enthusiastic; spirited, brave → US sl.
1963 — STOKED (ON) fond of; enthusiastic about; liking → orig. & chiefly surfing sl.
1967 — LARGE enthusiastic → Amer. dial.
1969 — DINKY wildly enthusiastic; crazy → US sl.
1969 — INTO fond of; enthusiastic about; liking
1970 — AMPED ready, enthusiastic → US sl.
1970 — ZONKED enthusiastic or excited → US sl.
1970 — ZONKERS enthusiastic or excited → US sl.
1980 — JACKED OFF enthusiastic, very keen → US sl.
1999 — FRET enthusiastic; excellent → Irish sl.
2000 — ALL ABOUT IT enthusiastic, keen → US students’ sl.

ADVERBS
1567 — LIKE MAD furiously, with excessive violence or enthusiasm
1617 — TO THE SKIES to the highest possible degree, enthusiastically, extravagantly
1670 — TO THE SKY to the highest possible degree, enthusiastically, extravagantly
1798 — HEART AND SOUL with all one’s energy and devotion; enthusiastically 
.M19 — ON A BUST enthusiastically, to a great extent → US sl.
1885 — LIKE BILLYO energetically, with great gusto; vigorously or enthusiastically → colloq.
1887 — IN LIKE GRUB greatly or enthusiastically → sl.
1911 — LIKE A RAT UP A PUMP enthusiastically, very energetically; often with reference to sexual activity
1940 — BALLS OUT at full tilt, all out, completely committed, with full determination or enthusiasm → sl.
1959 — LIKE A RAT UP A ROPE enthusiastically, very energetically; often with reference to sexual activity
1968 — LIKE A RAT UP A DRAINPIPE enthusiastically, very energetically; often with reference to sexual activity
1970 — LIKE A BANDIT enthusiastically, very, fast, very successfully → US sl.

INTERJECTIONS & PHRASES
1869 — MAN! an exclamation of enthusiasm, dismay, or astonishment
1922 — HAVE THEM ROLLING IN THE AISLES suggests a wildly enthusiastic reaction, esp. uncontrollable laughter, on the part of an audience
1927 — HAVE THEM BLEEDING IN THE AISLES suggests a wildly enthusiastic reaction, esp. uncontrollable laughter, on the part of an audience
1928 — LAY THEM IN THE AISLES to get a wildly enthusiastic reaction, esp. uncontrollable laughter, on the part of an audience
.M20 — HI-DE-HI! greeting, encouraging, or expressing enthusiasm, esp. in a dance band, holiday camp, etc. ; frequently  answered with ‘ho-de-ho’
.M20 — HI-DE-HO! expressing joy or enthusiasm, esp. in a jazz or dance band
1990 — WHOOMP, THERE IT IS! an exclamation of pleasure, approval, and enthusiasm → sl.
1990 — WHOOT, THERE IT IS! an exclamation of pleasure, approval, and enthusiasm → sl.
1999 — WHOOPYDOO! an enthusiastic exclamation → Aust. sl. (Bk.)

NOUNS
1386 — ARDURE warmth of emotion, zeal, fervour, eagerness, enthusiasm → obs.
.M16 — COOLING CARD something that defuses one’s enthusiasm or deflates one’s passion → sl.
1704 — FUROR great enthusiasm or excitement; a craze which takes everyone by storm
1709 — EMPRESSEMENT eagerness; cordiality; zeal; ardour; enthusiasm; animated display of friendliness → arch. 
1749 — EBULLIENCE an issuing forth in agitation, like boiling water; overflow; enthusiasm, extravagance
1831 — OATS enthusiasm → US sl.
1840 — THUZZY-MUZZY enthusiasm → sl.
1878 — EFFUSION enthusiastic demeanour
1880 — ELAN ardour; zeal; enthusiasm; impetuousness, vivacity
1885 — FEVER enthusiastic or excited interest → sl.
1891 — MUSTARD zest or enthusiasm → sl. chiefly US
1897 — AMBISH aggressive ambition or enthusiasm → Amer. sl.
1902 — BUG an obsessive enthusiasm or craze; an obsession or urge → sl., orig. US
1910 — DOBBER spirit, morale; enthusiasm → US sl.
1910 — ZOWIE keenness, enthusiasm, energy → sl.
1913 — GET UP AND GO energy; enthusiasm → Amer. dial. (Bk.)
1915 — DAUBER spirit; enthusiasm → US sl.
1937 — OOMPH energy, vigour, vitality, enthusiasm → sl., orig. US
1939 — SPARK vivacity, enthusiasm, or humour
1942 — CONFUSIASM enthusiastic confusion or confused enthusiasm → Amer. sl. (Bk.)
1960 — ZOOM zest, vivacity, enthusiasm → sl.
1990 — BIG LICKS enthusiasm or energy, as on the dance-floor  sl.
1991 — MONOMANIA an excessive interest in or enthusiasm for a single thing, ideal, or the, like; obsession → (Bk.)

NOUNS, PERSON
1625 — ZELANT a zealot or enthusiast → obs.
1663 — RAPTURIST an enthusiast → obs.
1704 — GLUTTON one who is inordinately fond of some specified object or pursuit; an enthusiast
1819 — AFICIONADO a connoisseur or dedicated student of some activity; an ardent follower of any sport, activity, or pastime; a fan
1836 — AFICIONADA a woman or girl who is very enthusiastic about some activity, subject, or pastime
1839 — RUSHER an energetic, enthusiastic, or aggressive person or animal → US colloq., obs.
1841 — BUG one who favours or enjoys something; an enthusiast → sl., orig. US
1884 — FIEND one who favours or enjoys something; an enthusiast → sl., orig. US
1889 — FAN an enthusiast, orig. of sport → orig. US
1895 — FREAK a devotee, an enthusiast → US sl. 
1896 — JOHNNY-ON-THE-SPOT a competent and enthusiastic person; one who is ready and willing to undertake the task at hand → Amer. dial.
..L19 — FLAMER an enthusiast; a success with the female sex, a lady’s man → sl.
..20C — RAT a person, esp. an enthusiast → sl.
1900 — MAFFICKER one who celebrates a joyful event with frenzied enthusiasm
1910 — BAG OF RATIONS a fussy or over-enthusiastic person, particularly if he was of superior rank → Eng. sl., contemptuous usage
1927 — SPARK PLUG an energetic, enthusiastic person, one who is the driving force behind any activity or undertaking → US colloq.
1931 — BUFF someone who favours or enjoys something; an enthusiast; a fan → sl., orig. US
1934 — NUT someone who favours or enjoys something; an enthusiast → sl., orig. US
1940 — FOAMER a (possibly obsessive) enthusiast → sl.
1943 — EAGER BEAVER an enthusiast; a zealous person eager for work → sl., orig. US
1945 — BOFFIN a person who is enthusiastic for and knowledgeable in any pursuit, activity, study, etc., esp. a research scientist
.M20 — JOCK an enthusiast for or a participant in any specified activity, as a computer ‘jock’ → N. Amer. colloq.
1957 — SUCKER an enthusiast; one who is particularly susceptible to the stated thing; followed by ‘for’ → sl., orig. Amer.
1970 — HONDO an avid participant or enthusiast → US students’ sl. (Bk.)  
1974 — FOOL an unusually able person in any field of activity, as a dancing fool, etc.; an enthusiast, a fan → Amer. sl. (Bk.)
1988 — HIGH-FLIER an enthusiast → Aust. sl. (Bk.)
1989 — MUPPET an enthusiastic but inept person; a person prone to mishaps through naivety → sl.

VERBS
1859 — RUSH (IT) to do something eagerly or enthusiastically → US colloq.
1867 — BE BIG ON to enjoy very much; to be enthusiastic about → Amer. sl.
1893 — POISON to affect with passion or enthusiasm → Amer. dial.
..20C — BOG IN to begin a task with enthusiasm → Aust. sl.
..20C — CHILL to become discouraged; to lose enthusiasm → Amer. sl.
..20C — TEAR IN → TEAR INTO to throw oneself enthusiastically into a task → sl.
1900 — MAFFICK to give way to a frenzy of enthusiasm; to celebrate a victory with a delirious uproar
1904 — FALL OVER ONESELF to go out of one’s way to do something; to be eager or enthusiastic → sl., orig. US
1920 — GO FOR YOUR LIFE to partake enthusiastically, to go all out → Aust. sl.
1924 — TURN ONE’S DAMPER DOWN to cool one’s ardour or enthusiasm → US sl.
1930 — STEAM SOMEONE UP to excite and stimulate; to incite enthusiasm → US sl.
.M20 — DROOL OVER to express or feel inordinate sentimentality or enthusiasm
1950 — FLIP ONE’S LID to be or become wildly excited or enthusiastic; to go wild; to lose one’s head; to become excessively angry → sl., orig. US
1952 — FLIP ONE’S WIG to be or become wildly excited or enthusiastic; to go wild; to lose one’s head; to become excessively angry → sl., orig. US
1953 — TREE-TOP to attack any project with unusual vigour or enthusiasm → Amer. dial.
1955 — GO APE to become excited, violent, sexually aggressive, etc.; to display strong enthusiasm or appreciation; also, to malfunction → sl., orig. US
1955 — WIG OUT to make or become wildly excited or enthusiastic; to lose control of one’s emotions; to be or get angry → sl.
1960 — GO OFF ONE’S FACE to be extremely enthusiastic; to collapse with laughter → sl.
1970 — GET ONE’S BUZZ to make one enthusiastic about something; to receive pleasure → US high school sl. (Bk.)
1970 — WAIL ON to do something with enthusiasm and with success; to overcome → US students’ sl. (Bk.)
1980 — GOOI A SPASM to react with joy or enthusiasm → S. Afr. sl.
1985 — GIVE IT LALDY to do something enthusiastically or vigorously → Sc. sl.
1996 — BURST OUT IN FAIRY LIGHTS to show an expected level of enthusiasm → Sc. sl.
2006 — FIRE UP to motivate; to make enthusiastic → US sl. (Bk.)