NUTCASE Synonyms: 114 Similar and Opposite Words

nutcase

noun

ˈnət-ˌkās

Definition of nutcase

as in eccentric

a person of odd or whimsical habits around the condo complex she's known as the nutcase who consistently ignores the rules

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in lunatic

a person who lacks good sense or judgment only a nutcase would try to accelerate a campfire by dousing it with gasoline

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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 nutcase Video testimony provided other repudiations of Eastman’s nutcase legal theory. — Walter Shapiro, The New Republic, 17 June 2022 Ma Seok-do (Ma) is still with the Geumcheon Police Major Crimes Unit, arriving to help his fellow officers deal with a knife-wielding nutcase who’s taken hostages at a corner store. — Dennis Harvey, Variety, 3 June 2022

Recent Examples of Synonyms for nutcase

Noun

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
No documentarian has a better eye for intriguing oddballs than Errol Morris, who built his feature film career on drawing them out in conversation, from pet-cemetery owners in Gates of Heaven to small-town eccentrics in Vernon, Florida.

— Judy Berman, Time, 11 Aug. 2026

Definition of eccentric

Noun

Republicans see an opportunity here, portraying progressive and socialist Democrats as lunatics and communists.

— ABC News, ABC News, 9 Aug. 2026
While sane Americans were celebrating the MLB All-Star Game in Philadelphia on Tuesday night, the lunatics in Portland, Oregon were cheering along as two men made out on a baseball field during a 'Heated Rivalry' theme night.

— Joe Kinsey OutKick, FOXNews.com, 15 July 2026

Definition of lunatic

Noun

The Oscar-winning actress has written a new musical stage adaptation around the character, set to open on London’s prestigious theater scene in the summer of 2027.

— Lily Ford, HollywoodReporter, 27 Aug. 2026
The entire ensemble of cast led by Manoj, Divya, and Boman bring an incredible depth to their characters.

— Naman Ramachandran, Variety, 27 Aug. 2026

Definition of character

Noun

But don’t let the cute style fool you—this look is super practical, too.

— Kayla Becker, Travel + Leisure, 29 Aug. 2026
However, reinventing Beethoven at the Bowl, doing so following Dudamel and with little rehearsal time, could easily become a fool’s errand.

— Classical Music Critic, Los Angeles Times, 27 Aug. 2026

Definition of fool

Noun

People who see ghosts tend to see the same ghost wafting down the same staircase, but none of the characters populating Leo’s wacko hallucinations have returned for a repeat perfor-mance.

— Literary Hub, Literary Hub, 10 Apr. 2026
This wacko crew was one of the greatest things in the history of television.

— Jordan Hoffman, EW.com, 14 Aug. 2025

Definition of wacko

Noun

Unbeknownst to the visitors, there’s an unhappy fifth party already in the house… and more than one homicidal maniac even within that small populace.

— Dennis Harvey, Variety, 28 July 2026
The odd thing about this choice is that, although the DSA’s platform is indeed chock-full of maniacal proposals, on this particular idea, the maniacs have a point.

— Jonathan Chait, The Atlantic, 22 July 2026

Definition of maniac

Noun

Whit’s Frozen Custard is known for its flavor of the day calendar, with rich custards running the decadent range from fluffer nutter cookie, carrot cake, and mint cookies ‘n cream to Biscoff cookie butter and banana nut bread.

— Terry Ward, Travel + Leisure, 9 May 2026
Lloyd Hansen is his exit strategy, and this nutter will stop at nothing to snuff Six and steal the drive.

— Peter Debruge, Variety, 14 July 2022

Definition of nutter

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“Nutcase.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nutcase. Accessed 1 Sep. 2026.

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Synonyms of nutcase

noun

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