crazy - noun

someone deranged and possibly dangerous

crazy - adjective

• affected with madness or insanity
• foolish; totally unsound
• possessed by inordinate excitement
• bizarre or fantastic
• intensely enthusiastic about or preoccupied with

crazy - thesaurus

brainsick   demented   disturbed   dotty   gaga   looney   loony   mad   nutcase   screwball   sick   softheaded   unbalanced   unhinged   weirdo   wild