Synonyms of nutty

1 Syllable

schtick, daft, mad, nuts, keen, rum, gump, warm

2 Syllables

spacey, wacky, kooky, schizoid, zaniest, goofy, apest, madder, loony, batty, cracked, moonstruck, loopy, buggy, crackers, mad-dog, spacy, boffo, daffy, buggies, ultraist, flakier, rummy, jollying, tomfool, jovial, birdy, crazier, screwy, schizo, witless, festal, maddest, craziest, rumer, crazy, daffier, dafter, zanier, dottier, daftest, zealous, loco, zany, aper, brainsick, whacko, absurd, wackiest, flaky, gung-ho, rabid, potty, smoking, loonier, dotty, manic, foolish, pottier, rummier, kookier, wackier, goofus, goofier, touched, fooler

3 Syllables

off-the-wall, lunatic, senseless, unusual, half-cracked, overboard, foolheaded, demented, eccentric, comical, insane, softheaded, unscrewed, fool-headed, hare-brained

4 Syllables

irrational, harebrained, corybantic, cockamamy, unreasoning, cockamamie, schizophrenic, conversable, illogical, imbecilic, enthusiastic, ridiculous, bedlamite