Noun: adversary 'ad-vur,se-ree or ad-vu,se-ree [N. Amer], 'ad-vi-s(u-)ree or ud'vur-su-ree [Brit]
- Someone who offers opposition
"The two candidates viewed each other as worthy adversaries in the debate";
- antagonist, opponent, opposer, resister
Derived forms: adversaries
Encyclopedia: Adversary