Dictionary.com
Thesaurus.com
Synonyms

antagonism

American  
[an-tag-uh-niz-uhm] / ænˈtæg əˌnɪz əm /

noun

  1. an active hostility or opposition, as between unfriendly or conflicting groups.

    the antagonism between the liberal and the conservative parties.

    Synonyms:
    strife, friction, conflict
  2. an opposing force, principle, or tendency.

    Her plan to become an actress met with the antagonism of her family.

    Synonyms:
    animosity
  3. Physiology. an opposing action, as by one muscle in relation to another.

  4. 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).

  5. Ecology.

    1. a relationship between two species of organisms in which the individuals of each species adversely affect the other, as in competition.

    2. the inhibition of the growth of one type of organism by a different type that is competing for the same ecological niche.


antagonism British  
/ ænˈtæɡəˌnɪzəm /

noun

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

Other Word Forms

Etymology

Origin of antagonism

First recorded in 1835–40; from French antagonisme, from Greek antagṓnisma; see antagonize, -ism

Explanation

Antagonism means hostility. You might feel antagonism toward your annoying little sister, particularly if she's always borrowing your stuff without asking. Antagonism is one of the few things you can share easily with someone you don't like. You might feel antagonism toward your school, or at least the idea of going to school. If you're an antagonistic person, you feel antagonism to lots of people and things.

Keep Reading on Vocabulary.com

Vocabulary lists containing antagonism

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.

Antagonism toward those who look over his shoulders?

From Washington Post • Mar. 1, 2019

“We want to have a clear narrative about these kinds of stories,” said Whitney Phillips, co-author of “The Ambivalent Internet: Mischief, Oddity and Antagonism Online.”

From Los Angeles Times • Aug. 1, 2018

Antagonism has always been one of music’s animating forces.

From New York Times • Apr. 22, 2016

Antagonism like that might have played well at the time.

From Forbes • Jul. 21, 2013

Antagonism between Greeks and Bulgarians is a legacy of the past.

From Bulgaria by Fox, Frank, Sir