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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.

I remember when he told me about the membership, I was like, “You pay how much? That’s insane, dude.”

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

Bryony Coles, from Belfast said it was "truly insane" to find out a photoshoot she had organised with Derry Girls actor Saoirse-Monica Jackson would feature in Vogue.

From BBC • Mar. 26, 2026

“Of all the insane things you could have done to get attention, you decide getting arrested is the best way?!”

From "Wayward Creatures" by Dayna Lorentz

Vocabulary lists containing insane

salu, san (health)

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