Main Entry:

wacky

Variant(s):

also whacky \ˈwa-kē\

Function:

adjective

Inflected Form(s):

wack·i·er; wack·i·est

Etymology:

perhaps from English dialect whacky fool

Date:

circa 1935

: absurdly or amusingly eccentric or irrational : crazy <wacky ideas> <a wacky comedian>

— wack·i·ly \ˈwa-kə-lē\ adverb

— wack·i·ness \ˈwa-kē-nəs\ noun