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.

Definitions of antagonism

n an actively expressed feeling of dislike and hostility

Type of:
a feeling of aversion or antipathy
enmity, hostility, ill will
the feeling of a hostile person

n a state of deep-seated ill-will

enmity, hostility
Cold War
a state of political hostility that existed from 1945 until 1990 between countries led by the Soviet Union and countries led by the United States
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latent hostility, tension
feelings of hostility that are not manifest
state of war, war
a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply
cold war
a state of political hostility between countries using means short of armed warfare
the state of being suspected
proxy war
a war instigated by a major power that does not itself participate
suspicion affecting your reputation
Type of:
the way something is with respect to its main attributes

n the relation between opposing principles or forces or factors

“the inherent antagonism of capitalism and socialism”
Type of:
oppositeness, opposition
the relation between opposed entities

n (biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure

Type of:
hinderance, hindrance, interference
the act of hindering or obstructing or impeding

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