1.Definition: of words so related that one contrasts with the other
"`rich' and `hard-up' are contrastive terms"
2.Definition: strikingly different; tending to contrast
"Contrasting (or contrastive) colors"
3.Definition: syntactically establishing a relation of contrast between sentences or elements of a sentence
"Disjunctive conjunctions like `but', `or', or `though' serve a contrastive function"