an active hostility or opposition, as between unfriendly or conflicting groups: the antagonism between the liberal and the conservative parties.
an opposing force, principle, or tendency: Her plan to become an actress met with the antagonism of her family.
Physiology. an opposing action, as by one muscle in relation to another.
Biochemistry, Pharmacology. the opposing action of substances, as drugs, that when taken together decrease the effectiveness of at least one of them (contrasted with synergism ).
a relationship between two species of organisms in which the individuals of each species adversely affect the other, as in competition.
the inhibition of the growth of one type of organism by a different type that is competing for the same ecological niche.

1835–40; (< French antagonisme) < Greek antagṓnisma. See antagonize, -ism

interantagonism, noun

1. conflict, friction, strife. 2. animosity. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To antagonism
World English Dictionary
antagonism (ænˈtæɡəˌnɪzəm)
1.  openly expressed and usually mutual opposition
2.  the inhibiting or nullifying action of one substance or organism on another
3.  physiol the normal opposition between certain muscles
4.  biology the inhibition or interference of growth of one kind of organism by another

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1838, from Gk. antagonisma, noun of action from antagonizesthai "to struggle against" (see antagonist).
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

antagonism an·tag·o·nism (ān-tāg'ə-nĭz'əm)
Mutual opposition in action between structures, agents, diseases, or physiological processes. Also called mutual resistance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Example sentences
It's not a problem of hostility or antagonism, it's more of a problem of
The antagonism of the past spills over into present-day disputes.
Scholars trace the nation's antagonism to its history of domination by foreign
Most of the present antagonism is expressed in words, not violent acts .
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature