psychopath

The definition of a psychopath is a person who is unstable, insane, abnormally violent or unable to maintain normal social behavior.

(noun)

A person who commits multiple murders for fun is an example of a psychopath.

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See psychopath in Webster's New World College Dictionary

noun

a person suffering from a mental disorder; specif., psychopathic personality

Origin: back-form. < psychopathy

See psychopath in American Heritage Dictionary 4

noun
A person with an antisocial personality disorder, manifested in aggressive, perverted, criminal, or amoral behavior without empathy or remorse.

Origin:

Origin: Back-formation from psychopathic

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