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C2. mentally ill: clinically insane For the last ten years of his life he was clinically insane. go insane informal I sometimes think I'm going insane (= I feel very confused). C1. extremely unreasonable or stupid:
The meaning of INSANE is exhibiting a severely disordered state of mind. How to use insane in a sentence. exhibiting a severely disordered state of mind; affected with insanity; unable to think in a clear or sensible way —not used technically…
Insane definition: (not in technical use as a medical diagnosis) not sane; not of sound mind; mentally deranged.. See examples of INSANE used in a sentence.
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. Many uses of the word are not so serious.
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.
INSANE meaning: 1. seriously mentally ill: 2. very silly or stupid: . Learn more.
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 (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.
Synonyms for INSANE: psychotic, lunatic, mad, nuts, crazy, maniacal, maniac, mental; Antonyms of INSANE: sane, reasonable, sound, balanced, rational, clear, normal, wise.
