noun
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psychiatry a persistent idea or impulse that continually forces its way into consciousness, often associated with anxiety and mental illness
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a persistent preoccupation, idea, or feeling
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the act of obsessing or the state of being obsessed
Other Word Forms
Etymology
Origin of obsession
First recorded in 1505–15; from Latin obsessiōn-, stem of obsessiō “blockade, siege,” from obsess(us) “occupied, besieged” (past participle of obsidēre “to occupy, besiege”; see obsess) + -iō -ion
Explanation
If you have an obsession, you're totally fixated on something and unhealthily devoted to it. Some common obsessions include fantasy football leagues, celebrity gossip, and Elvis memorabilia. Obsession is kind of like a passion for something that crosses the line into crazy territory. Sometimes people get so preoccupied with their obsessions that it makes them anxious or emotionally unstable. If you have an obsession with the Yankees, for example, you might go to every single game, skip work to watch spring training, paper your room with Yankees posters, and write love notes to Derek Jeter.
Vocabulary lists containing obsession
Vocabulary from an excerpt from "Confessions of a 30-Year-Old Gamer," by Ta-Nehisi Paul Coates
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Derek Walcott (1930-2017) Tribute List
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The Boy Who Invented TV
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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.
The cycles of our obsession are shortening, after all.
From Salon • May 27, 2026
The presiding judge said in her bail decision that the allegedly "bad relationship" between father and son, driven by Jonathan Andic's "obsession... with money", was part of the evidence presented by investigators.
From Barron's • May 26, 2026
There are a mix of reasons, including the market’s obsession with finding secondary AI beneficiaries with even hotter growth prospects.
From The Wall Street Journal • May 26, 2026
Even ignoring the element of tradition, New Hampshire, with its small size, ease of access, and traditional obsession with democratic representation and retail politics, easily fits the mold for the earliest contest.
From Slate • May 26, 2026
Considering Egyptian society’s obsession with immortality, it’s not surprising that Egyptian art remained unchanged for 3,000 years.
From "The Annotated Mona Lisa" by Carol Strickland and John Boswell
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.
