wacky

adjective

ˈwa-kē 

variants or less commonly whacky

wackier also whackier; wackiest also whackiest

: absurdly or amusingly eccentric or irrational

wacky ideas

a wacky comedian

wackily

ˈwa-kə-lē 

adverb

wackiness

ˈwa-kē-nəs 

noun

Synonyms

• bizarre
• eccentric
• strange
• weird
• funny
• odd
• peculiar
• crazy
• curious

Examples of wacky in a Sentence

My wacky aunt takes a swim before the lake freezes every winter.

the wacky world of his imagination

Recent Examples on the Web

During the trip, Zahn kept calling Gomez extolling the costumes and the wacky splendor of the whole event. —Baz Bamigboye, Deadline, 30 Sep. 2025

This game could be wacky, or gross, or both. —Chris Branch, New York Times, 29 Sep. 2025

The crew have put two giant skeletons with their arms in the air like gruesome wacky waving inflatable tube men at the Farm's entrance to catch your eye and indicate where the spooky fun is at. —Meredith G. White, AZCentral.com, 25 Sep. 2025

After a bunch of toppling, wacky noises and looks of despair, Morgan secures what feels like her 75th veto of the season. —Nick Caruso, TVLine, 24 Sep. 2025

Word History

Etymology

perhaps from English dialect whacky fool

First Known Use

1930, in the meaning defined above

Rhymes for wacky

• bacchae
• jacky
• lackey
• tacky

Kids Definition

wacky

adjective

ˈwak-ē 

wackier; wackiest

: amusing and very strange

wackily

ˈwak-ə-lē

adverb

wackiness

ˈwak-ē-nəs

noun