contrary vs opposition

contrary and opposition both are nouns.

Word	Noun	Adjective	Verb	Adverb
contrary	Yes	Yes	No	No
opposition	Yes	No	No	No

As nouns, opposition is a hypernym of contrary; that is, opposition is a word with a broader meaning than contrary:

Other hypernyms of contrary include oppositeness.

As nouns, opposition is a hypernym of contrary; that is, opposition is a word with a broader meaning than contrary:

Other hypernyms of contrary include oppositeness.

contrary (noun)	opposition (noun)
exact opposition	the act of hostile groups opposing each other
a relation of direct opposition	the action of opposing something that you disapprove or disagree with
a logical relation such that two propositions are contraries if both cannot be true but both can be false	a body of people united in opposing something
	an armed adversary (especially a member of an opposing military force)
	a contestant that you are matched against
	a direction opposite to another
	the relation between opposed entities

contrary (adjective)	opposition (adjective)
of words or propositions so related that both cannot be true but both may be false
very opposed in nature or character or purpose
resistant to guidance or discipline
in an opposing direction