Definition of "insane"
- adjective
Exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted.
Used by, or appropriated to, insane persons; as, an insane hospital.
Causing insanity or madness.
Characterized by insanity or the utmost folly; chimerical; unpractical; as, an insane plan, attempt, etc.
- Sources