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English definition of “insane”

insane

adjective     /ɪnˈseɪn/
ILL seriously mentally ill : a hospital for the criminally insane Mental and psychiatric disordersOf unsound mindStupid and silly
STUPID very silly or stupid : an insane decision Stupid and sillyOf unsound mind
insanely adverb
(Definition of insane adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “insane” in other dictionaries

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