personality disorder

noun

plural personality disorders
: any of various psychological disorders that are characterized by persistent inflexible or impaired patterns of thought and behavior that usually cause difficulties in forming and maintaining interpersonal relationships and in meeting the daily demands of one's personal and work life and that typically become apparent during adolescence or early adulthood

Note: Personality disorders are typically accompanied by three types of presentations: intense and unstable emotions, eccentric and odd behavior, or extreme fear or nervousness.

As a diagnosable personality disorder, narcissism occurs more often in males than females, often developing in the teenage years or early adulthood and becoming more extreme with age.Jane E. Brody
Recent studies have shown that personality disorders, especially the one seen most frequently in clinical settings—borderline personality disorder—are common …, are associated with high levels of self-injury and suicide, and have a considerable, stressful effect on families.S. Charles Schultz
see antisocial personality disorder, borderline personality disorder, multiple personality disorder, narcissistic personality disorder, schizoid personality disorder, schizotypal personality disorder

Examples of personality disorder in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
These episodes are also a painful reminder of my sister, who has a personality disorder and exhibits similar behavior toward me. R. Eric Thomas, The Mercury News, 28 Sep. 2024 No one has been able to monetize a terrible German accent and a personality disorder as effectively as Anna Delvey. Ej Dickson, Rolling Stone, 4 Sep. 2024 But some psychiatrists contended that the vulnerability criteria overlapped too much with those of other personality disorders. Diana Kwon, Scientific American, 1 Sep. 2023 These include psychosis, social anxiety disorder, avoidant personality disorder, depressive disorders, Internet addiction, and post-traumatic stress disorder. Paul Smaglik, Discover Magazine, 7 Aug. 2024 See all Example Sentences for personality disorder 

Word History

First Known Use

1919, in the meaning defined above

Time Traveler
The first known use of personality disorder was in 1919

Dictionary Entries Near personality disorder

Cite this Entry

“Personality disorder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/personality%20disorder. Accessed 16 Nov. 2024.

Medical Definition

personality disorder

noun
: any of various psychological disorders that are characterized by persistent inflexible or impaired patterns of thought and behavior that usually cause difficulties in forming and maintaining interpersonal relationships and in meeting the daily demands of one's personal and work life and that typically become apparent during adolescence or early adulthood

Note: Personality disorders are typically accompanied by three types of presentations: intense and unstable emotions, eccentric and odd behavior, or extreme fear or nervousness.

As a diagnosable personality disorder, narcissism occurs more often in males than females, often developing in the teenage years or early adulthood and becoming more extreme with age.Jane E. Brody
Recent studies have shown that personality disorders, especially the one seen most frequently in clinical settings—borderline personality disorder—are common …, are associated with high levels of self-injury and suicide, and have a considerable, stressful effect on families.S. Charles Schultz
see antisocial personality disorder, borderline personality disorder, multiple personality disorder, narcissistic personality disorder, schizoid personality disorder, schizotypal personality disorder
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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