Synonyms: defender, withstander
Definition: a fighter who holds out against attack
Similar words: scrapper, belligerent, battler, combatant, fighter
Definition: someone who fights (or is fighting)
Synonyms: withstander
Definition: an opponent who resists with force or resolution
Usage: obstinate withstanders of innovation
Similar words: adversary, antagonist, opponent, opposer, resister
Definition: someone who offers opposition