n.
Pronunciation: an- ' ta-g ə - ˌ ni-z ə m
Function: noun
Date: 1835
1 a : opposition of a conflicting force, tendency, or principle <the antagonism of democracy to dictatorship> b : actively expressed opposition or hostility < antagonism between factions>
2 : opposition in physiological action especially : interaction of two or more substances such that the action of any one of them on living cells or tissues is lessened
synonyms see ENMITY