1
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
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in absurdity
a foolish act or idea
everyone laughed at the latest insanity from the town eccentric
Synonyms & Similar Words
Antonyms & Near Antonyms
3
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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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of insanity
Considering these economic anxieties, allocating nearly one-third of the state budget to defense might seem like insanity.
—
Anna Nemtsova, Time, 23 May 2026
The chaotic family life was cited when Cary Stayner pleaded not guilty by reason of insanity to the tourists’ murders; he was found mentally fit to stand trial.
—Bay Area News Group, Mercury News, 4 May 2026
Call it a runner's high or insanity; the marathon takes just about everything a person can muster up physically and mentally.
—CBS News, 30 Apr. 2026
Then came the biggest moment of insanity.
—Michael Pressman, HollywoodReporter, 30 Apr. 2026
See All Example Sentences for insanity
Anna Nemtsova, Time, 23 May 2026
The chaotic family life was cited when Cary Stayner pleaded not guilty by reason of insanity to the tourists’ murders; he was found mentally fit to stand trial.
—Bay Area News Group, Mercury News, 4 May 2026
Call it a runner's high or insanity; the marathon takes just about everything a person can muster up physically and mentally.
—CBS News, 30 Apr. 2026
Then came the biggest moment of insanity.
—Michael Pressman, HollywoodReporter, 30 Apr. 2026
See All Example Sentences for insanity
Recent Examples of Synonyms for insanity
Noun
-
All of this creates new pathways between the brain’s neurons, improving cerebral neuroplasticity and preventing neurodegenerative diseases such as dementia.—
Alessandra Signorelli,
Vogue,
29 May 2026
-
She is left to care for her partner’s elderly mom who battles Parkinson’s and dementia.—
Idaho Statesman,
Idaho Statesman,
28 May 2026
Noun
-
But consider the absurdity of applying that logic to human beings.—
Ion Stoica,
Fortune,
27 May 2026
-
For all of Titanique's camp absurdity, the show's internal logic is airtight.—
Dave Quinn,
PEOPLE,
26 May 2026
Noun
-
As the saying goes, there is no great genius without some touch of madness.—
Amy Lawrence,
New York Times,
31 May 2026
-
Some families came from beyond the KC area to catch the banana madness.—
Kansas City Star,
Kansas City Star,
31 May 2026
Noun
-
How then to escape this hysteria?—
Jonathan Odden,
Artforum,
2 June 2026
-
But Pressure is less a war story, rapt with the hysteria of battlefield deeds, than an intense exposition on the human capacity to tolerate uncertainty at a time when decisiveness is an imperative for action.—
Daniel Jonah Wolpert,
NPR,
29 May 2026
Noun
-
Nobody doggedly builds a stand-up career that takes them from clubs to theaters to selling out arena tours from a foundation of genuine stupidity.—
David Fear,
Rolling Stone,
28 May 2026
-
And not just because one of the leading contestants torched himself and his political livelihood in a bonfire of hubris and stupidity.—
Los Angeles Times,
Los Angeles Times,
10 May 2026
Noun
-
The project posed several issues for an artist who had always emphasized clarity and simplicity in his solitary picture-taking.—
James Quandt,
Artforum,
2 June 2026
-
Baoase is also transporting, as any memorable hotel should be, with a strong Asian-esque design that includes ubiquitous Balinese Hindu statues, idols, and sculptures, and a reliance on simplicity over dazzle.—
Condé Nast,
Condé Nast Traveler,
2 June 2026
Noun
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Brennan explained that explorations of society’s associations with mental health, both broadly in the aftermath of World War II and specifically Gein’s own struggles with schizophrenia, were top of mind when penning the script.—
Katie Campione,
Deadline,
28 May 2026
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Over the years, doctors reportedly diagnosed him with schizophrenia, bipolar disorder and obsessive-compulsive disorder.—
Stepheny Price,
FOXNews.com,
27 May 2026
Noun
-
That’s the level of idiocy in the Los Angeles city government.—
Susan Shelley,
Daily News,
13 May 2026
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The idiocy of these people knows no bounds.—
Austin Perry OutKick,
FOXNews.com,
25 Apr. 2026
Cite this Entry
“Insanity.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/insanity. Accessed 4 Jun. 2026.
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