Synonyms of opposer

1 Syllable
player, foe, crip, con, match
2 Syllables
entrant, bidder, anti, bidders, bandit, rival
3 Syllables
opponent, resisters, assailant, resister, oppugnant, dissentient, aspirant, disputant, challenger, enemy, contestant, litigant
4 Syllables
antagonist, adversaries, competitor, counteragent, adversary, candidate, opposition
5 Syllables
oppositionist