obsessive-compulsive
Americanadjective
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noting or relating to a personality characterized by perfectionism, indecision, conscientiousness, concern with detail, rigidity, and inhibition.
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Psychiatry. noting or relating to a disorder or neurosis characterized by persistent intrusion of unwanted thoughts (obsessions) or the performance of actions, as repeated hand-washing, that one is unable to stop (compulsions).
obsessive-compulsive disorder.
noun
Etymology
Origin of obsessive-compulsive
First recorded in 1925–30; obsessive ( def. ) + compulsive ( def. )
Explanation
Anything that's obsessive-compulsive relates to a kind of anxiety characterized by a combination of obsessive thoughts and repetitive behaviors that help relieve the anxiety these thoughts cause. Obsessive-compulsive disorder (OCD) is a mental disorder that causes people to think or worry obsessively, and to become so anxious that they feel a need (or compulsion) to perform some kind of ritual. These obsessive-compulsive actions can include counting, tapping things, moving or jerking their bodies, turning lights on and off, and nail biting. The term obsessive-compulsive dates from the 1920s, combining Latin roots obsessus, "besiege," and compulsus, "forced."
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Many neurological and psychiatric conditions, including schizophrenia, obsessive-compulsive disorder, and some forms of brain injury, can make it difficult for people to apply existing skills in new situations.
From Science Daily • Nov. 28, 2025
From a diagnostic standpoint, it overlaps with obsessive-compulsive disorder, generalized anxiety disorder and trauma-related syndromes.
From The Wall Street Journal • Nov. 12, 2025
She weaned him off clozapine entirely in 2018 and Cauchi also stopped taking medication to treat his obsessive-compulsive disorder the year after, she said.
From BBC • May 30, 2025
Clinicians continue to debate how best to define it, as orthorexia can share features of anorexia nervosa and obsessive-compulsive disorder.
From Slate • May 25, 2025
Even if that means getting involved in someone's obsessive-compulsive underwear disorder.
From "Counting by 7s" by Holly Goldberg Sloan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.