Synonyms of opponent in English:

opponent


See definition of opponent

noun

1‘he beat his Republican opponent by a landslide’

SYNONYMS
rival, adversary, opposer, the opposition, fellow contestant, competitor, fellow competitor, other candidate, other competitor, other contestant, other player, enemy, foe, antagonist, combatant, contender, challenger, critic, dissenter, disputant, objector
ANTONYMS

ally, partner, colleague

2‘an opponent of the economic reforms’

SYNONYMS
opposer, objector, dissident, dissenter, rejectionist
ANTONYMS

supporter