Synonyms for Wacky:
•acting crazy (adjective)
foolish, silly, insane, zany, nutty, daft, absurd, balmy, preposterous, lunatic, loony, demented, nuts, screwy, mad.
imbecilic, cockamamy, tomfool, loopy.
crackers, balmy, bananas, fruity.
n.amusing, hysterical, priceless, imbecilic, dippy, nonsensical, knowledge, ability, unearthly, jerky, mad, softheaded, wry, lunatic, absurd, humorous, tomfool, hilarious, dopey, comic, harebrained, comical, playful, moronic, preposterous, cockeyed, idiotic. •wacky (noun)
cracked, buggy, around the bend, daft, fool, dotty, cockamamy, cockamamie, kooky, round the bend, nuts, batty, bats, crackers, loopy, loony, haywire, insane, barmy, unreasonable, kookie, goofy, whacky, nutty, loco, balmy, silly, bonkers, foolish, zany, sappy, fruity.
mentally ill, jerky, dippy, softheaded, brainsick, bananas, Daffy. maniacal, preposterous, imbecilic, absurd, moronic, lunatic, cockeyed, unbalanced, distraught, non compos mentis, nonsensical, screwy, demented, harebrained. disordered, unsound, moonstruck, idiotic, touched, dopey. mad, unearthly. off. •Other relevant words:
demented, bananas, amusing, dippy, distraught, brainsick, comic, imbecilic, absurd, mad, idiotic, lunatic, mentally ill, cuckoo, non compos mentis, preposterous, unsound, screwy, harebrained, hilarious, touched, off, maniacal, Daffy, batty, softheaded, playful, cockeyed, dopey, comical, moonstruck, maniac, unbalanced, disordered, moronic, jerky, tomfool, nonsensical, unearthly.