- opponent, opposing - characterized by active hostility; "opponent (or opposing) armies"
Antonym: amicable (indirect, via hostile)
- opposition, opponent, opposite - a contestant that you are matched against
--1 is a kind of contestant
Derived form: verb oppose4 - adversary, antagonist, opponent, opposer, resister - someone who offers opposition
--2 is a kind of person, individual, someone, somebody, mortal, human, soul
--2 has particulars:dueler, dueller, duelist, duellist; enemy, foe, foeman, opposition; Luddite; withstander; Antichrist Derived form: verb oppose1