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noun [ plural ] uk / ɪnˈseɪn / us / ɪnˈseɪn / the insane. mentally ill people: a hospital for the criminally insane.
1. a (1) dated, now usually offensive : exhibiting a severely disordered state of mind. (2) law : affected with insanity (see insanity sense 2) criminally insane. b. : unable to think in a clear or sensible way. insane with jealousy. not used technically. 2.
Synonyms for INSANE: psychotic, lunatic, mad, nuts, crazy, maniacal, maniac, mental; Antonyms of INSANE: sane, reasonable, sound, balanced, rational, clear, normal, wise.
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.
Insane is a formal or old-fashioned term used in the past to describe somebody with a serious mental illness. It can now be offensive, although it still has a technical use in law meaning that somebody is not able to understand that their own actions are wrong or not able to understand a trial process:
People who are insane are suffering from a seriously irrational or disordered state of mind. When someone commits a crime, it's important to know if they were sane or insane. If they're insane, the penalty is different.
a. severely mentally ill, so that normal thinking and behaviour is impossible. b. ( as collective noun; preceded by the) the insane. 2. law. not responsible for one's actions or not capable of managing one's own affairs because of a defect of reason. 3. characteristic of an insane person.
There are nine meanings listed in OED's entry for the word insane. See ‘Meaning & use’ for definitions, usage, and quotation evidence. insane has developed meanings and uses in subjects including. medicine (late 1500s) psychiatry (early 1700s) See meaning & use.
INSANE meaning: 1. seriously mentally ill: 2. very silly or stupid: . Learn more.
insane (informal) having a mind that does not work normally: If I have to stay any longer, I'll go insane. Insane is also used as a legal term for someone who is not responsible for a crime they have committed because they were not able to know right from wrong at the time.
