Insane1. (a.) Exhibiting unsoundness or disorded of mind; not sane; mad; deranged in mind; delirious; distracted. See Insanity.
2. (a.) Used by, or appropriated to, insane persons; as, an insane hospital.
3. (a.) Causing insanity or madness.
4. (a.) Characterized by insanity or the utmost folly; chimerical; unpractical; as, an insane plan, attempt, etc.
Thesaurus Entries
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