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insane
The definition of insane is someone who acts or speaks strangely because their brain isn’t working correctly.
(adjective)An example of insane is a person who goes shopping without any pants on.
Insane is defined as very foolish or senseless behavior.
(adjective)An example of insane is a person who goes on an expensive vacation after just losing a job.
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See insane in Webster's New World College Dictionary
adjective
- not sane; mentally ill or deranged; demented; mad: not a technical term
- ☆ of or for insane people: an insane asylum
- very foolish, impractical, extravagant, etc.; senseless
Origin: L insanus
Related Forms:
- insanely adverb
See insane in American Heritage Dictionary 4
adjective
- a. Of, exhibiting, or afflicted with insanity.b. Characteristic of or associated with persons afflicted with insanity: an insane laugh; insane babbling.c. Intended for use by such persons: an insane asylum.
- Immoderate; wild: insane jealousy.
- Very foolish; absurd: took insane risks behind the wheel.
Origin:
Origin: Latin īnsānus
Origin: : in-, not; see in-1
Origin: + sānus, sane, healthy
.Related Forms:
- in·saneˈly adverb
- in·saneˈness noun
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