antagonism

As a noun antagonism

is a strong natural dislike or hatred; antipathy.

As a proper noun adversary is

(religion|christianity) the devil; satan.

As nouns the difference between anathema and antagonism

is that anathema is a ban or curse pronounced with religious solemnity by ecclesiastical authority, often accompanied by excommunication; something denounced as accursed while antagonism is a strong natural dislike or hatred; antipathy.

As nouns the difference between antagonism and indignation

is that antagonism is a strong natural dislike or hatred; antipathy while indignation is an anger aroused by something perceived as an indignity, notably an offense or injustice.

As nouns the difference between malice and antagonism

is that malice is intention to harm or deprive in an illegal or immoral way desire to take pleasure in another's misfortune while antagonism is a strong natural dislike or hatred; antipathy.

As nouns the difference between antagonism and belligerence

is that antagonism is a strong natural dislike or hatred; antipathy while belligerence is a state of being belligerent.

As nouns the difference between antagonism and belligerent

is that antagonism is a strong natural dislike or hatred; antipathy while belligerent is a state or other armed participant in warfare.

As an adjective belligerent is

engaged in warfare, warring.

Revulsion is a related term of antagonism.

As nouns the difference between revulsion and antagonism

is that revulsion is abhorrence, a sense of loathing, intense aversion, repugnance, repulsion, horror while antagonism is a strong natural dislike or hatred; antipathy.

As nouns the difference between competition and antagonism

is that competition is competition while antagonism is a strong natural dislike or hatred; antipathy.

As nouns the difference between solicitude and antagonism

is that solicitude is the state of being solicitous; uneasiness of mind occasioned by fear of evil or desire for good; anxiety while antagonism is a strong natural dislike or hatred; antipathy.

As a noun antagonism is

a strong natural dislike or hatred; antipathy.