psy·chop·a·thy | \sī-ˈkä-pə-thē \
plural psychopathies

Definition of psychopathy 

: mental disorder especially when marked by egocentric and antisocial activity

Examples of psychopathy in a Sentence

Recent Examples on the Web

Research shows that internet trolls tend to display personality traits like sadism, psychopathy, and Machiavellianism. German Lopez, Vox, "David Hogg’s family was swatted. That’s extremely dangerous.," 5 June 2018 The discovery caught the attention of other researchers, and by the 1950s, psychedelic testing was in full bloom, yielding promising results for people suffering from neurosis, schizophrenia, and psychopathy. Hope Reese, Longreads, "‘I Was a Storm of Confetti’: Michael Pollan On Why It’s a Good Idea To Lose Your Self," 30 May 2018 That's sociopathy, psychopathy rooted in narcissism. Fox News, "Texas lieutenant governor on preventing school shootings," 19 May 2018 Many are walking among us, leading completely normal lives, and are even some of the most successful members of society, precisely because of their psychopathy. Xanthe Mallett, Newsweek, "The God Complex: How to Spot an Everyday Psychopath," 9 Mar. 2018 There is still a lot to be learned about these traits and the select few who embody the truest clinical expressions of sociopathy, psychopathy, or narcissism. Talkspace, Teen Vogue, "What It Really Means to be a Sociopath, Psychopath, and Narcissist," 23 Oct. 2017 Sociopathy and psychopathy are often used interchangeably in clinical settings. Talkspace, Teen Vogue, "What It Really Means to be a Sociopath, Psychopath, and Narcissist," 23 Oct. 2017 But a closer look reveals that yawn contagion did not correlate with the overall measure of psychopathy but rather with one of three submeasures. Daniel Engber, Slate Magazine, "Another Replication Crisis? Yawn.," 2 Mar. 2017 Researchers believe that two paths can lead to psychopathy: one dominated by nature, the other by nurture. Barbara Bradley Hagerty, The Atlantic, "When Your Child Is a Psychopath," 16 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'psychopathy.' 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 psychopathy

1847, in the meaning defined above

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The first known use of psychopathy was in 1847

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psy·chop·a·thy | \sī-ˈkäp-ə-thē \
plural psychopathies

Medical Definition of psychopathy 

Comments on psychopathy

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evasion of direct action or statement

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