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Definitions

insane

[in-seyn] / ɪnˈseɪn /


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.

Yet Mr. Cook would have been insane to do otherwise.

From The Wall Street Journal • May 8, 2026

“The network is insane because, at this point, everyone knows someone who is doing something,” Vital Lyfe COO Andrew Harner told MarketWatch.

From MarketWatch • May 7, 2026

Like, how is the culture enriched by fixating on the musings of visibly insane posters on 4Chan?

From Slate • May 7, 2026

The self-confessed rap fan even threw in some hip-hop lyrics, declaring Iran's leaders to be, in the words of Cypress Hill, "insane in the brain."

From Barron's • May 6, 2026

The letter explained that Charles Parker had made arrangements for his cousin to be taken to the state insane asylum two hundred miles away.

From "The Heart is a Lonely Hunter" by Carson McCullers




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