wacky

[ wak-ee ]
/ ˈwæk i /
SEE SYNONYMS FOR wacky ON THESAURUS.COM

adjective, wack·i·er, wack·i·est. Slang.

odd or irrational; crazy: They had some wacky plan for selling more books.
Also whacky.

Origin of wacky

1935–40; apparently whack (noun, as in out of whack) + -y1

OTHER WORDS FROM wacky

wack·i·ly, adverb wack·i·ness, noun

Words nearby wacky

wace, wack, wacke, wacked-out, wacko, wacky, wacky tobacky, waco, wad, wad medani, wada

Words related to wacky

crazy, unpredictable, eccentric, loony, nutty, silly, absurd, zany, foolish, odd, balmy, crazed, daft, demented, deranged, erratic, insane, irrational, lunatic, mad

Example sentences from the Web for wacky

British Dictionary definitions for wacky

wacky
/ (ˈwækɪ) /

adjective wackier or wackiest

slang eccentric, erratic, or unpredictable

Derived forms of wacky

wackily, adverb wackiness, noun

Word Origin for wacky

C19 (in dialect sense: a fool, an eccentric): from whack (hence, a whacky, a person who behaves as if he had been whacked on the head)