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 (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.
Adjective insane (comparative more insane or insaner, superlative most insane or insanest) Exhibiting unsoundness or disorder of mind; not sane; utterly mad. Synonyms: see Thesaurus: insane
Define insane. insane synonyms, insane pronunciation, insane translation, English dictionary definition of insane. afflicted with mental derangement, having a disordered mind, mad: Her bizarre threats were the result of an insane jealousy.
Insane refers to a state of severe mental illness or mental disorder, characterized by a significant impairment in one's ability to think, reason, or perceive reality. It is often marked by unpredictable or irrational behavior, delusions, hallucinations, or an inability to function in society.