antagonism vs suspicion

antagonism and suspicion both are nouns.

Word	Noun	Adjective	Verb	Adverb
antagonism	Yes	No	No	No
suspicion	Yes	No	No	No

As nouns, suspicion is a hyponym of antagonism; that is, suspicion is a word with a more specific, narrower meaning than antagonism:

Other hyponyms of antagonism include latent hostility, tension, state of war, war, cold war.

antagonism (noun)	suspicion (noun)
(biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure	being of a suspicious nature
an actively expressed feeling of dislike and hostility	doubt about someone's honesty
the relation between opposing principles or forces or factors	an impression that something might be the case
a state of deep-seated ill-will	the state of being suspected