INSANITY Synonyms: 123 Similar and Opposite Words

insanity

noun

in-ˈsa-nə-tē

Definition of insanity

as in dementia

a serious mental disorder that prevents one from living a safe and normal life his incurable insanity requires that he spend the rest of his life in a mental hospital

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Antonyms & Near Antonyms

as in absurdity

a foolish act or idea everyone laughed at the latest insanity from the town eccentric

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Antonyms & Near Antonyms

as in madness

lack of good sense or judgment had the insanity to think that taking over a government building in protest of our foreign policy was a good idea

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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 insanity And that was like Vitalogy, probably the peak of the insanity. — Brian Hiatt, Rolling Stone, 6 Oct. 2026 Counsel was enraged that his gambit was foiled by one jury holdout on the insanity argument. — Voice Of The People, New York Daily News, 2 Oct. 2026 Prosecutors questioned the schizophrenia diagnosis and pointed out that suffering from mental illness is not the same as meeting the legal standard of insanity. — Clara Harter, Los Angeles Times, 1 Oct. 2026 Staging a movie of broad scolding maximalism isn’t the same thing as staging a movie of debonair satirical insanity. — Owen Gleiberman, Variety, 29 Sep. 2026 See All Example Sentences for insanity

Recent Examples of Synonyms for insanity

Noun

Other symptoms include mild dementia that involves short-term memory loss, a lack of interest in daily activities and difficulty completing routine tasks.

— Andrea Flores, Los Angeles Times, 16 Oct. 2026
As a final demonstration of this approach’s promise, the researchers designed zinc proteases that could target proteins associated with neurological disorders, such as Alzheimer’s and frontotemporal dementia.

— ArsTechnica, ArsTechnica, 14 Oct. 2026

Definition of dementia

Noun

The Beatles, not yet known in America, were already inspiring hysteria across England.

— Christopher Borrelli, Chicago Tribune, 18 Oct. 2026
Unfortunately, Shakespeare never actually visited Venice; and scholars now recognise that Shylock’s character is more a reflection of anti-Jewish hysteria in early seventeenth-century London than anything that was going on in Italy at that time.

— Literary Hub, Literary Hub, 16 Oct. 2026

Definition of hysteria

Noun

Learning that countless more people will lose their lives on account of his neglect, greed, and stupidity, he is pressed, reluctantly, into a most self-serving mode of damage control.

— Justin Chang, New Yorker, 30 Sep. 2026
Nerdiest song for drummers This will probably come down to stupidity.

— Devon Ivie, Vulture, 22 Sep. 2026

Definition of stupidity

Noun

Satin finish, soft glow Much like the origins of the mochi skin concept, the mochi skin aesthetic is rooted in the Japanese approach to beauty, where simplicity and radiance take center stage.

— Jeanne Ballion, Vogue, 24 Oct. 2026
That process has been in place for over three decades, and Brazilians have become accustomed to its speed, simplicity, accuracy and routine.

— Solly Boussidan, FOXNews.com, 23 Oct. 2026

Definition of simplicity

Browse Nearby Words

insanities

insanity

insatiable

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Cite this Entry

Style

“Insanity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insanity. Accessed 27 Oct. 2026.

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Synonyms of insanity

noun

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