nemesis, foe, enemy, opponent, ally, antagonist, tormentor, aggressor, sparring partner, interlocutor, competitor, rivals, tormenter, archenemy, challenger, hegemon, mortal enemy, superpower, inquisitor, oppressor, conquerer, pursuer, conqueror, bully, assassin, wiles, flatterer, villain, counterforce, vanquisher, intimidator, prevaricator, stratagem, archrival, frenemy, protege, tyrant, betrayer, formidability, detractor, invader, henchman, combatant, sidekick, conniver, admirer, loose cannon, meddler, hegemony, warrior, interloper, trump card, acolyte, parti pris, marauder, appeaser, kremlinologist, arsenal, tactic, confidante, weapon, strategem, intriguer, wielder, aggression, taunter, cold warrior, arguer, dominator, vacillator, victor, underling, bogeyman, paramour, belligerency, weakling, usurper, minion, bete noire, hostiles, comrade, rhetoricians, gunslinger, bluffer, wits, russophobe, benefactor, baddie, underminer, friend, ditherer, abstract noun, transgressor, unorthodoxy, warhorse, mudslinger, consigliere, personage, villian, persuader, wilier, colonizer, foes, enemies, adversaries, rival, protector, accuser, protectors, assailant, adversarial, formalized, formal, adjudicative, appellate, conflictive, consultative, contentious, trait, associational, client, collusive, expedited, institutionalised, interdependent, interlocutory, nonadversarial, oppositional, reciprocal, regularized

antichrist, dueler, duelist, dueller, duellist, enemy, foe, foeman, luddite, opponent, opposition

antichrist, beelzebub, charge, devil, enemy, foe, foeman, information warfare, iw, lucifer, matched, old nick, olive branch, opposition, peace offering, prince of darkness, redoubtable, satan, the devil, the tempter

human, individual, mortal, person, somebody, someone, soul

antagonist, opponent