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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

He maintained that he was suffering from mental illness at the time of the attack and was unable to form the intent to kill, urging the court to acquit him on the grounds of insanity.

From BBC • Apr. 30, 2026

“Man on Fire” does what thrillers do, accelerating into insanity toward the end of its seven episodes, becoming increasingly implausible, frenetic and rife with coincidence.

From The Wall Street Journal • Apr. 30, 2026

The act remedied this insanity to some extent; it provides an “innocent owner” defense to those whose property has been seized.

From "The New Jim Crow" by Michelle Alexander




Vocabulary lists containing insanity


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