in·sane /(ˈ)ɪnˈsen/ 形容詞
1. Exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted. See Insanity, 2.
2. Used by, or appropriated to, insane persons; as, an insane hospital.
3. Causing insanity or madness. [R.]
Or have we eaten on the insaneroot
That takes the reason prisoner ? --Shak.
4. Characterized by insanity or the utmost folly; chimerical; unpractical; as, an insane plan, attempt, etc.
I know not which was the insane measure. --Southey.
adj 1: afflicted with or characteristic of mental derangement; "was
declared insane"; "insane laughter" [ant: sane]
2: very foolish; "harebrained ideas"; "took insane risks behind
the wheel"; "a completely mad scheme to build a bridge
between two mountains" [syn: harebrained, mad]