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obsessive

[uh b-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
4.
someone who has an obsession or obsessions; a person who thinks or behaves in an obsessive manner.
Origin
1910-1915
1910-15; obsess(ion) + -ive
Related forms
obsessively, adverb
obsessiveness, noun
nonobsessive, adjective
nonobsessively, adverb
nonobsessiveness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for obsessiveness

obsessive

/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
noun
3.
(psychiatry) a person subject to obsession
4.
a person who is continually preoccupied with a particular activity, person, or thing
Derived Forms
obsessively, adverb
obsessiveness, noun
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
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Word Origin and History for obsessiveness

obsessive

adj.

1911, from obsess + -ive. Related: Obsessively. Obsessive-compulsive is attested from 1927.

Online Etymology Dictionary, © 2010 Douglas Harper
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obsessiveness in Medicine

obsessive ob·ses·sive (əb-sěs'ĭv, ŏb-)
adj.
Of, characteristic of, or causing an obsession.


ob·ses'sive n.
ob·ses'sive·ness n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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