field competition competitor adversary challengers contender entrant opposition candidate contestant foe opponent participant rival applicant corrival entry hopeful runner possibility possible antagonist opposition enemy combatant hostile viers attacker match bandit disputant enemy oppugner villain archenemie assailant invader favorite favourite emulator nominee aspirant seeker bidder player athlete prospect suitor racers campaigner catch bet nomination appointee sportsman claimant postulant pretender successor petitioner resister dissentient oppositionist dissident objector dissenter protester nonconformists demonstrator activist protestor picketer militant no complainer picket con critic litigant