wacky

adjective

ˈwa-kē How to pronounce wacky (audio)
variants or less commonly whacky
wackier also whackier; wackiest also whackiest
Synonyms of wackynext
: absurdly or amusingly eccentric or irrational
wacky ideas
a wacky comedian
wackily
ˈwa-kə-lē How to pronounce wacky (audio)
adverb
wackiness
ˈwa-kē-nəs How to pronounce wacky (audio)
noun

Synonyms of wacky

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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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But friend of the column Rick Vaughn pretty much ordered me to include this one, from the wacky, back-field Florida Complex League rookie-ball annals. — Jayson Stark, New York Times, 31 July 2026 The Banana Ball World Tour is passing through Boise this summer, bringing the wackiest version of an American classic to Idahoans for the first time. — Idaho Statesman, 27 July 2026 The insane wacky Halo physics do remain, reliably proving both funny and frustrating. — Mitch Wallace, Forbes.com, 26 July 2026 But there were plenty of amenities to point out—the massage rooms and nap pods, the dinosaur fossil, the wacky sensory-break touches like ball pits, swings, and yoga balls (even if no one actually seemed to use them). — Claire Stapleton, New Yorker, 18 July 2026 See All Example Sentences for wacky

Word History

Etymology

perhaps from English dialect whacky fool

First Known Use

1930, in the meaning defined above

Time Traveler
The first known use of wacky was in 1930

Rhymes for wacky

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Browse Nearby Words

wacko
wacky
wacky tobacky
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Cite this Entry

“Wacky.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/wacky. Accessed 4 Aug. 2026.

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Kids Definition

wacky

adjective
ˈwak-ē How to pronounce wacky (audio)
wackier; wackiest
: amusing and very strange
wackily
ˈwak-ə-lē
adverb
wackiness
ˈwak-ē-nəs
noun

More from Merriam-Webster on wacky

Nglish: Translation of wacky for Spanish Speakers

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