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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.

Another added: "It would be insane to challenge the patient."

From BBC • Mar. 11, 2026

When the Islamic revolution happened in 1979, they said, This is an insane system, a monarchy, that the son of the current guy is the person who’s going to rule until he dies.

From Slate • Mar. 11, 2026

Tracy has had an insane career but also an insane life, like the accident and coming back from that.

From The Wall Street Journal • Mar. 2, 2026

“The reaction has been more insane than I’ve ever seen for any of the shows we ever did with Brian,” he says.

From Los Angeles Times • Feb. 27, 2026

“What audacious criminal,” asked the magazine L’Illustration, “what mystifier, what manic collector, what insane lover, has committed this abduction?”

From "The Mona Lisa Vanishes" by Nicholas Day