antonymous vs contrastive

antonymous and contrastive both are adjectives.

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

antonymous (adjective)	contrastive (adjective)
of words: having opposite meanings	of words so related that one contrasts with the other
	strikingly different; tending to contrast
	syntactically establishing a relation of contrast between sentences or elements of a sentence