Word Study
kooky
WORDNET DICTIONARY
Adjective kooky has 1 sense
- kooky(s = adj.all) around the bend, balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kookie, loco, loony, loopy, nuts, nutty, round the bend, wacky, whacky - informal or slang terms for mentally irregular; "it used to drive my husband balmy" Derived form noun kook1
OXFORD DICTIONARY
kooky, adj. (kookier, kookiest) sl. crazy.
Derivative
kookily adv. kookiness n.
THESAURUS
kooky
abnormal, absurd, anomalous, apish, asinine, balmy, bananas, barmy, bats, batty, beany, befooled, beguiled, besotted, bonkers, brainless, buffoonish, buggy, bughouse, bugs, cockeyed, crackers, crank, crankish, cranky, crazy, credulous, crotchety, cuckoo, curious, daffy, daft, dazed, deviant, deviative, different, dippy, divergent, dizzy, doting, dotty, dumb, eccentric, erratic, exceptional, fatuitous, fatuous, fey, flaky, flipped, fond, fool, foolheaded, foolish, freaked out, freaked-out, freakish, freaky, fruitcakey, fruity, fuddled, funny, futile, gaga, goofy, gulled, haywire, idiocratic, idiosyncratic, idiotic, imbecile, inane, inept, infatuated, insane, irregular, just plain nuts, kinky, loony, loopy, mad, maggoty, maudlin, moronic, nuts, nutty, odd, oddball, off, off the hinges, off the track, off the wall, out, outlandish, passing strange, peculiar, potty, quaint, queer, quirky, round the bend, sappy, screwball, screwballs, screwy, senseless, sentimental, silly, singular, slaphappy, strange, stupid, thoughtless, twisted, unconventional, unearthly, unnatural, wacky, weird, wet, whimsical, witless, wondrous strange
For further exploring for "kooky" in Webster Dictionary Online