psychopath

American  

[sahy-kuh-path] / ˈsaɪ kəˌpæθ /

noun

1. a person with a psychopathic personality, which manifests as amoral and antisocial behavior, lack of ability to love or establish meaningful personal relationships, extreme egocentricity, failure to learn from experience, etc.

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psychopath British  

/ ˈsaɪkəʊˌpæθ /

noun

1. Also called: sociopath.  a person afflicted with a personality disorder characterized by a tendency to commit antisocial and sometimes violent acts and a failure to feel guilt for such acts

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psychopath Cultural  

1. A mentally unbalanced person who is inclined toward antisocial and criminal behavior. (Compare sociopath.)

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Other Word Forms

• psychopathic
  adjective
• psychopathically
  adverb

Etymology

Origin of psychopath

First recorded in 1880–85; psycho- + -path

Compare meaning

How does psychopath compare to similar and commonly confused words? Explore the most common comparisons:

• sociopath vs. psychopath

Explanation

It would be unfortunate to end up alone in an elevator with a psychopath. A psychopath is a mentally ill person with violent tendencies. Psychopath is a psychiatric term that refers to a person suffering from a mental illness involving violent behavior or various kinds of abnormal social interactions. A person who's been diagnosed as a psychopath has a lot of trouble interacting with other people and living a normal life. The noun psychopath is also used casually to mean simply a bizarre or unpredictably violent person. The word comes from the Greek words for "mind" and "suffering": psykhe and pathos.

Example Sentences

Not everyone with psychopathic traits commits crimes, and not every person who commits a crime is a psychopath, but research has consistently linked psychopathy with a higher risk of violent behavior.

From Science Daily • May 10, 2026

Leanne explains her research on “dark personality traits” and success in the business world, how to spot a true psychopath, and what to do if you find yourself working with one.

From Slate • Apr. 14, 2026

The 34-year-old, who finished 21st in Beijing four years ago, came second in Friday's training, proclaiming himself a very satisfied "psychopath" after overcoming mental and physical challenges.

From Barron's • Feb. 6, 2026

You’d be unwise to look to the movies for economic insight—this one amounts to an extended fatuous argument that an individual who behaved like a corporate restructuring would be a psychopath.

From The Wall Street Journal • Dec. 24, 2025

But I can’t see him as a psychopath.

From "The Girl on the Train" by Paula Hawkins

Related Words

• lunatic
• maniac
• psycho
• sociopath