WACKO Synonyms: 176 Similar and Opposite Words

wacko 1 of 2

adjective

ˈwa-(ˌ)kō

variants also whacko

Definition of wacko

as in absurd

showing or marked by a lack of good sense or judgment a completely wacko obsession with cleaning

Synonyms & Similar Words

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Antonyms & Near Antonyms

wacko

2 of 2

noun

variants also whacko

as in eccentric

a person of odd or whimsical habits Some think he is a wacko but I consider him a genius.

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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.

Recent Examples of wacko

Adjective

This wacko crew was one of the greatest things in the history of television. — Jordan Hoffman, EW.com, 14 Aug. 2025 Sounds crazy, but when has UAB football not been completely wacko. — Joseph Goodman | [email protected], al, 16 Dec. 2022

Noun

His search takes him to a wacko cult in the desert run by a scamster, and that of course puts the sheriff in deadly danger. — Sandra Dallas, Denver Post, 6 July 2025 You could also get lost attempting to read the splintered English and Hebrew letters running atop a stage festooned with wacko props and occult imagery. — Andrew Lampert, Artforum, 1 May 2025 See All Example Sentences for wacko

Recent Examples of Synonyms for wacko

Adjective

Doing so would be a stupid move for an Oval Office wannabe, one already hobbled by the progressive persona of the Golden State.

— Los Angeles Times, Los Angeles Times, 14 Oct. 2026
Republican Massachusetts Senate nominee John Deaton is not stupid.

— Jon Keller, CBS News, 14 Oct. 2026

Definition of stupid

Noun

The public reckonings with these figures’ legacies—the troubled former child star gone too soon, the beloved icon, the cult favorite, the complicated eccentric—have come in a cascade.

— Michael Schulman, New Yorker, 5 Sep. 2026
Make sure to practice a full range of motion with these and emphasize the eccentric (the way down) part of the movement for maximal time under tension and muscle-building stimulus.

— Jakob Roze, HEALTH, 19 Aug. 2026

Definition of eccentric

Adjective

But seeing my parents examining themselves in that way and connecting with people and putting themselves in vulnerable and silly and meaningful situations.

— Sarah Larson, New Yorker, 11 Oct. 2026
That scene was always the silliest in the American version, and its absence in the international edition was a wise choice.

— Jim Hemphill, IndieWire, 9 Oct. 2026

Definition of silly

Noun

Earlier versions looked unnaturally green, while the team also considered how the character’s skin would react to different lighting.

— Davide Abbatescianni, Variety, 15 Oct. 2026
Coleman said each design has its own distinct character and can be styled individually, either as a subtle everyday detail or a sculptural statement.

— Tianwei Zhang, Footwear News, 15 Oct. 2026

Definition of character

Adjective

Soaking the suburbs over parking is reminiscent of other foolish, revenue-grabbing ideas, such as a congestion tax aimed at outsiders as a way to gin up money to cover Chicago’s ever-present budget black hole.

— The Editorial Board, Chicago Tribune, 1 Oct. 2026
With Oracle having lost more than $20 billion in stock-market value today, this appears to be penny-wise and pound foolish.

— Liz Hoffman, semafor.com, 24 Sep. 2026

Definition of foolish

Adjective

Imagine House Hunters, and then taking the old, crazy MTV Room Raiders, essentially putting them together and having a baby.

— Lexi Carson, HollywoodReporter, 13 Oct. 2026
Two crazy ass years have gone by (fast af) and my travels have left me, at 28, with a little more wisdom, more guts and ALOT more shoes!

— Walden Green, Pitchfork, 12 Oct. 2026

Definition of crazy

Noun

Musk, as the documentary makes clear, is a genuine if flawed technocratic visionary, a messianic opportunist, and something of a crackpot.

— Owen Gleiberman, Variety, 8 Sep. 2026
Get the angst out of the games, and the crackpots will move on to some other fashionable cause.

— Dom Amore, Hartford Courant, 26 July 2026

Definition of crackpot

Browse Nearby Words

wackiness

wacko

wackos

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Style

“Wacko.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/wacko. Accessed 16 Oct. 2026.

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Synonyms of wacko

adjective

noun

Example Sentences

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