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Showing results for insane.
Definitions

insane

[in-seyn] / ɪnˈseɪn /
ADJECTIVE
mad
Synonyms
STRONGEST
crazy delirious demented deranged frantic frenzied kooky nutty
WEAK
aberrant bananas batty crazed cuckoo daft frenetic loony lunatic non compos mentis of unsound mind off one's rocker out of one's mind raving unbalanced unhinged unsound unstable
Antonyms
STRONGEST
balanced calm collected rational reasonable sane sensible wise
WEAK
OK sound unenthusiastic

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.

It sounds borderline insane to consider that the only available team in America’s second-largest market might not be worth as much as the team that just sold in America’s 30th-largest market.

From Los Angeles Times • Apr. 17, 2026

Shipping costs are up, too, Ferreri said, describing "insane" prices for the delivery of essential farm equipment.

From Barron's • Apr. 11, 2026

Those stories are so real and it is insane.

From The Wall Street Journal • Apr. 3, 2026

"It was my dream to work with Vogue and have my 'Devil Wears Prada' moment so to be able to now say that I am a Vogue-published photographer, truly is insane."

From BBC • Mar. 26, 2026

Moose are large, and essentially insane with an almost pathological hatred of the dogs, the sled, the musher, trees, trains, cars, and everything else as near as I can figure.

From "Woodsong" by Gary Paulsen

Vocabulary lists containing insane

salu, san (health)

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