Opponent

Antonyms of OPPONENT

proponent, follower, amicable, comrade, musketeer, buddy, hail-fellow-well-met, fellow, chum, hearty, backer, advocate, ally, compadre, friendly, benefactor, confederate, colleague, collaborator, sympathizer, friend, well-wisher, hail-fellow, crony, assistant, associate, pal, accessory, exponent, helper, amigo, abettor, champion, disciple, adherent.