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Synonyms

obsessive

American  
[uhb-ses-iv] / əbˈsɛs ɪv /

adjective

  1. being, pertaining to, or resembling an obsession.

    an obsessive fear of illness.

  2. causing an obsession.

  3. excessive, especially extremely so.


noun

  1. someone who has an obsession or obsessions; a person who thinks or behaves in an obsessive manner.

obsessive British  
/ əbˈsɛsɪv /

adjective

  1. psychiatry motivated by a persistent overriding idea or impulse, often associated with anxiety and mental illness

  2. continually preoccupied with a particular activity, person, or thing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. psychiatry a person subject to obsession

  2. a person who is continually preoccupied with a particular activity, person, or thing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nonobsessive adjective
  • nonobsessively adverb
  • nonobsessiveness noun
  • obsessively adverb
  • obsessiveness noun

Etymology

Origin of obsessive

First recorded in 1910–15; obsess(ion) + -ive

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.

Between scans of the horizon, we bond over “Listers,” the 2025 documentary that turns obsessive birdwatching into both comedy and a tale of devotion.

From Los Angeles Times • Apr. 7, 2026

In the individual categories, Feinberg said Timothee Chalamet is a clear frontrunner for best actor honors for his portrayal of an obsessive 1950s table tennis star in "Marty Supreme."

From Barron's • Mar. 1, 2026

When Anna, a self-described "Heated Rivalry obsessive", watched the show it reminded her of a world she already knew - the Chinese male-male romance stories she had grown up reading.

From BBC • Feb. 26, 2026

No other Victorian poet could have brought off such a fitful and obsessive work; no one else could have sustained such music and emotion for more than 100 pages.

From The Wall Street Journal • Feb. 20, 2026

The reason I’ve never dreamed about him was that he belonged already to the world of dreams: discontinuous, irrational, obsessive.

From "Cat's Eye" by Margaret Atwood