Roget's Thesaurus

#710. Opponent

Nouns

opponent, antagonist, adversary; adverse party, opposition; enemy etc. 891; the other side; assailant. oppositionist, obstructive; brawler, wrangler, brangler, disputant; filibuster [U.S.], obstructionist. malcontent; Jacobin, Fenian; demagogue, reactionist. rival, competitor. bete noir [Fr.].