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Definitions

insanity

[in-san-i-tee] / ɪnˈsæn ɪ ti /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Isn’t there a saying about insanity is repeating the same mistakes over and over and expecting a different result?

From Los Angeles Times • Jun. 6, 2026

Barabak: A popular expression — which Steyer mentioned — defines insanity as doing the same thing over and over and expecting a different result.

From Los Angeles Times • May 15, 2026

The New York Post's Lauren Sarner called the new season "an unhinged disaster" and "an off-the-rails roller coaster of insanity".

From BBC • Apr. 13, 2026

It’s positively demented, but it’s not insanity for insanity’s sake.

From Salon • Apr. 5, 2026

I thought talking and not talking made the difference between sanity and insanity.

From "The Woman Warrior" by Maxine Hong Kingston




Vocabulary lists containing insanity


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