Exhibiting unsoundness or disorder of mind; not sane; utterly mad.
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Used by or relating to insane people.
an insane hospital
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Causing insanity or madness.
an insane asylum
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Add your own interpretation of "insane".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.