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

However, despite the wacky endeavors before the fight, the match went off without a hitch. —Joseph Epstein, Newsweek, 10 Dec. 2024

Some of the calls that came in after Hacks started gaining the industry’s attention: Dead Ringers, on which Liu plays the nefarious house manager to Rachel Weisz’s gynecologist twins; The Afterparty, which Liu joined for its second season on Apple TV+; and this summer’s wacky comedy Space Cadet. —Seija Rankin, The Hollywood Reporter, 6 Dec. 2024

But there’s more to Morgan’s wealth than the law–he’s got an eclectic, debt-free assortment of holdings ranging from real estate, to six indoor wacky WonderWorks science museums to a stake in the late Jimmy Buffett’s Margaritaville. —Brandon Kochkodin, Forbes, 5 Dec. 2024

But after passionate debate and much compromise, EW managed to narrow down the list of 2024's wackiest movie moments to the 10 most unforgettable scenes. —Ew Staff, EW.com, 5 Dec. 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