Exhibiting unsoundness or disorder of mind; not sane; utterly mad.
Used by or relating to insane people.
Causing insanity or madness.
Extremely good; incredibly amazing.
Characterized by insanity or the utmost folly; ridiculous; impractical.
Unconcerned about the adverse consequences of one's actions on others.
Having the characteristics of a sociopath.
A sociopath.