antonymous vs contrary

antonymous is not a noun while contrary is a noun.

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

antonymous (noun)	contrary (noun)
	exact opposition
	a relation of direct opposition
	a logical relation such that two propositions are contraries if both cannot be true but both can be false

antonymous (adjective)	contrary (adjective)
of words: having opposite meanings	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