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Definition of wacky

wacky

/ˈwæk.i/
wack · y
Adverb:wackily
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wacky Lexical Profile

wacky Game Scores & Validity

• adjective

1

Funny or amusing in a slightly odd, eccentric, or peculiar way.

Example

"The comedy troupe is known for its wacky sketches and colorful costumes."

Synonyms
View all synonyms for wacky
Antonyms
View all antonyms for wacky

• Rhymes for wacky

• Nearby Words

wackily
wackiness
wacko
wacky
waco
wad
wadable

Word Origin & Etymology

Originated in late 19th-century British and American slang from "whacky," derived from "whack" (a blow to the head), implying someone who has been struck on the head and is therefore eccentric or foolish.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Wacky. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/wacky
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