psy·​cho·​path | \ ˈsī-kə-ˌpath How to pronounce psychopath (audio) , ˈsī-kō-\

Definition of psychopath

: a mentally ill or unstable person especially : a person affected with antisocial personality disorder

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Synonyms for psychopath


bug, crackbrain, crazy, fool, fruitcake, head case, loon, loony, lunatic, maniac, nut, nutcase, nutter [British slang], psycho, sickie, sicko, wacko (also whacko)

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Examples of psychopath in a Sentence

declared that he was a dangerous psychopath who needed to be locked up

Recent Examples on the Web

Behind this brutal act of a psychopath is the Polish political psychosis. Bojan Pancevski, WSJ, "Polish Politician Dies After Stabbing, Sparking Uproar," 14 Jan. 2019 Because the most distinctive thing about that season was David Tennant’s portrayal of the mind-controlling psychopath Kilgrave. Mike Hale, New York Times, "Review: ‘Jessica Jones’ Returns, Well Timed for the Time’s Up Moment," 7 Mar. 2018 Idris Elba has scored four Emmy nominations for Outstanding Lead Actor in a Miniseries or Movie for his role as John Luther, an obsessive, dedicated, and sometimes violent police officer investigating Morgan, a brilliant psychopath and murderer. Amanda Mitchell, Marie Claire, "8 TV Shows Like 'Killing Eve' to Binge If You Can't Wait for Season 2," 17 Jan. 2019 One of them is a world-class perfume maker, and plausibly a psychopath. Taylor Antrim, Vogue, "Three New Crime Shows To Get Hooked on Now," 12 Jan. 2019 By the 1970s and ’80s, though, the notion of hitchhiking had taken a darker turn, and had become more associated with psychopaths. Janelle Nanos,, "Stop answering your phone," 6 Jan. 2018 The series is basically ASMR for psychopaths, and I, for one, am not pleased about its return. Devon Maloney, The Verge, "Salad Fingers is coming back, and I already want to barf," 30 Nov. 2018 Smith, who has a criminal history dating back to the 1970s, was described by defense experts as a psychopath lacking in impulse control. Paulina Dedaj, Fox News, "Man who raped and killed Florida girl, 8, draws death sentence," 2 Oct. 2018 But a vast syndicate isn't nearly as compelling as a violent psychopath with exquisite taste who also longs for love. Jennifer Ouellette, Ars Technica, "Matt Murdock is back and darker than ever in new trailer for Daredevil season 3," 21 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychopath.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of psychopath

1885, in the meaning defined above

History and Etymology for psychopath

International Scientific Vocabulary

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Statistics for psychopath

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Time Traveler for psychopath

The first known use of psychopath was in 1885

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More Definitions for psychopath



English Language Learners Definition of psychopath

: a person who is mentally ill, who does not care about other people, and who is usually dangerous or violent


psy·​cho·​path | \ ˈsī-kə-ˌpath How to pronounce psychopath (audio) \

Medical Definition of psychopath

: a mentally ill or unstable individual especially : a person having an antisocial personality

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More from Merriam-Webster on psychopath

Rhyming Dictionary: Words that rhyme with psychopath

Thesaurus: All synonyms and antonyms for psychopath

Spanish Central: Translation of psychopath

Nglish: Translation of psychopath for Spanish Speakers

Comments on psychopath

What made you want to look up psychopath? Please tell us where you read or heard it (including the quote, if possible).


an enemy or opponent

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