sociopathic : Idioms & Phrases

• noun a personality disorder characterized by amorality and lack of affect; capable of violent acts without guilt feelings (`psychopathic personality' was once widely used but was superseded by `sociopathic personality' to indicate the social aspects of the disorder, but now `antisocial personality disorder' is the preferred term)
  psychopathic personality; antisocial personality disorder.
  

WordNet