psychopath

中文： 精神病人、精神变态者、精神病患者、变态者

1. A person with a personality disorder indicated by a pattern of lying, cunning, manipulating, glibness, exploiting, heedlessness, arrogance, delusions of grandeur, carelessness, low self-control, disregard for morality, lack of acceptance of responsibility, callousness, and lack of empathy and remorse. Such a person may be especially prone to violent and criminal offenses.
2. A person with no moral conscience. (figuratively)
3. A person who perpetrates especially gruesome or bizarre violent acts. (figuratively)
4. A person diagnosed with antisocial or dissocial personality disorder.

复数 psychopaths