oppositive

As adjectives the difference between oppositional and oppositive

is that oppositional is of, pertaining to, or exhibiting opposition while oppositive is expressing contrariety.

As a noun opposition

is the opposition, political opposition; opposition party.

As an adjective oppositive is

expressing contrariety.

As adjectives the difference between opponent and oppositive

is that opponent is situated in front; opposite; hence, opposing; adverse; antagonistic while oppositive is expressing contrariety.

As a noun opponent

is an individual or group who is a rival of another.

As adjectives the difference between oppositive and appositive

is that oppositive is expressing contrariety while appositive is of or being in apposition.

As a noun appositive is

(grammar): a word or phrase that is in apposition.