View synonyms for insane

insane

[in-seyn]

Phonetic (Standard)IPA

adjective

(not in technical use as a medical diagnosis) not sane; not of sound mind; mentally deranged.
Synonyms: irrational, foolish, maniacal, crazy, crazed, lunatic, demented
of, relating to, or characteristic of a person who is mentally deranged.
a wild and insane look on her face.
Law., considered to be or to have been affected with insanity, and therefore lacking legal responsibility or legal capacity.
The judge deemed him criminally insane on the basis of his delusions and hallucinations.
temporarily unable to think clearly.
I think I'm going insane from all the noise outside.
utterly senseless.
an insane plan.
Slang., excessive or extravagant; extreme.
This much snow in April is just insane!
Slang., astonishingly great; wonderful.
Without his insane performance, the film would've been a total flop.

insane

/ ɪnˈseɪn /

1. mentally deranged; crazy; of unsound mind
2. ( as collective noun; preceded by the )
  the insane
characteristic of a person of unsound mind
an insane stare
irresponsible; very foolish; stupid

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Origin of insane¹

First recorded in 1550–60; from Latin insānus “unsound (of mind), demented, frenzied”; in- ³, sane

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See mad.

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Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The fans are insane, and fortune favors, in the long term, those who spend rashly and can buy players who want to win.

For starters, you’re an activist investor, tough as hell, with an insane drive to beat others.

It was so Trumpian, he thinks everything can be a big building with his name on it, but in his insane way he was saying: Imagine it differently.

“You don’t expect this in the middle of a neighborhood. It’s insane,” said Sheppard when he climbed out.

“California accident victims getting insane payouts,” the anchor says above a banner touting “BREAKING NEWS.”

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