A psychopath is a person who has an abnormal mental condition characterized by lack of empathy and remorse, as well as impulsive behavior and antisocial tendencies. Psychopaths often have difficulty forming healthy relationships with others and may engage in criminal or violent behaviors. The term "psychopath" is sometimes used interchangeably with "sociopath," but sociopathy refers specifically to a disorder characterized by antisocial behavior, while psychopathy encompasses a broader range of personality traits and behaviors.