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
• bizarro
• cranky
• crazy
• curious
• eccentric
• erratic
• far-out
• funky
• funny
• kinky
• kooky
• kookie
• odd
• off-kilter
• off-the-wall
• offbeat
• out-of-the-way
• outlandish
• outré
• peculiar
• quaint
• queer
• queerish
• quirky
• remarkable
• rum [chiefly British]
• screwy
• spaced-out
• strange
• way-out
• weird
• weirdo
• wild

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

The TikTok trends that coined wacky new terms, the brand scandals that got everyone checking their lot numbers, the most memorable celebrity makeup moments—this is your final exam on 2024’s hairiest, happiest, and most helpful beauty stories. —Marci Robin, Allure, 19 Dec. 2024

Sure, there’s one last bit of Taylor Sheridan self-gratification in the first ten minutes, as everyone gathers around and laughs heartily at one last wacky story from Travis. —Vulture Editors, Vulture, 18 Dec. 2024

Fortunately, the Borderlands 4 trailer brings back the iconic absurd humor and more wacky guns. —Thomas G. Moukawsher, Newsweek, 13 Dec. 2024

This kit has over 50 different slime supplies all in one box to create 18 beautifully wacky colors of crystal slime, ranging from clear to purple. —Nora Colomer, Fox News, 29 Nov. 2024

Word History

Etymology

perhaps from English dialect whacky fool

First Known Use

1930, in the meaning defined above

Kids Definition

wacky

adjective

ˈwak-ē 

wackier; wackiest

: amusing and very strange

wackily

ˈwak-ə-lē

adverb

wackiness

ˈwak-ē-nəs

noun