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

Definition of psychopath

: a mentally unstable person especially : a person having an egocentric and antisocial personality marked by a lack of remorse for one's actions, an absence of empathy for others, and often criminal tendencies

Keep scrolling for more

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)

Visit the Thesaurus for More 

Examples of psychopath in a Sentence

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

Recent Examples on the Web

This time around, however, the trio in the title does not refer to the original line-up of psychopaths. Clark Collis,, "Rob Zombie reveals 'complete chaos' behind the creation of Devil's Reject's sequel 3 from Hell," 13 Sep. 2019 And that’s powerful and that’s dangerous in the real world, let alone when your entire audience is just billions of psychopaths. Adi Robertson, The Verge, "Borderlands 3 has a billion guns, and its most dangerous weapon is vlogging," 14 Aug. 2019 Two siblings and three of their friends in route to visit their grandfather's grave in Texas end up falling victim to a family of cannibalistic psychopaths and must survive the terrors of Leatherface and his family. Houston Chronicle, "Outside the Megaplex: Here are the Houston arthouse movies showing Aug. 9-15," 8 Aug. 2019 As the group endure further hardships, some soldiers reveal themselves to be psychopaths, embracing their brutality, and others children who have simply been brainwashed. N.e.g., The Economist, "“Monos” paints a surreal and disturbing portrait of child guerrillas," 16 Sep. 2019 Nobody is entirely good or evil—with the possible exception of Starlight (Erin Moriarty), the closest thing to a genuine superhero in the series, and Homelander (Antony Starr), a genuine psychopath. Jennifer Ouellette, Ars Technica, "Review: The Boys is the perfect therapy for chronic superhero fatigue," 9 Aug. 2019 There are ample data points demonstrating that people with low empathy, even psychopaths, can turn on their care when properly motivated to do so. K.n.c., The Economist, "How to increase empathy and unite society," 7 June 2019 From wonder women to super men, here’s a spotlight of some of the heroes, psychopaths, pets and aliens making their way around the convention center and the local Gaslamp area. Los Angeles Times, "The faces of cosplay at Comic-Con 2019," 18 July 2019 Michel Salgado - Described by former Real Madrid teammate Steve McManaman as a 'genuine psychopath', the right back was a near ever-present during Los Blancos famed Galacticos era., "Vicente Del Bosque: The Moustachioed Mister's All-Time Best XI," 5 July 2019

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.

See More

First Known Use of psychopath

1885, in the meaning defined above

History and Etymology for psychopath

International Scientific Vocabulary

Keep scrolling for more

Learn More about psychopath

Statistics for psychopath

Last Updated

13 Oct 2019

Look-up Popularity

Time Traveler for psychopath

The first known use of psychopath was in 1885

See more words from the same year

Keep scrolling for more

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

1 : a person having an egocentric and antisocial personality marked by a lack of remorse for one's actions, an absence of empathy for others, and often criminal tendencies
2 formerly : a person with antisocial personality disorder

Keep scrolling for more

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).


to be made up of

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!