antagonism
1. [ noun ] the relation between opposing principles or forces or factors
Examples:

"the inherent antagonism of capitalism and socialism"

Related terms: opposition incompatibility antagonize
2. [ noun ] a state of deep-seated ill-will
Synonyms: enmity hostility
Related terms: state latent_hostility war suspicion antagonize
3. [ noun ] an actively expressed feeling of dislike and hostility
Related terms: hostility dislike
4. [ noun ] (biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure
Related terms: hindrance biochemistry
Similar spelling:   antagonist
  antagonise
  antagonistic
  antagonize
  antagonizing
  Antigonus
  Antigonia