- withstander - an opponent who resists with force or resolution; "obstinate withstanders of innovation"
--1 is a kind of adversary, antagonist, opponent, opposer, resister
Derived form: verb withstand1 - defender, withstander - a fighter who holds out against attack
--2 is a kind of combatant, battler, belligerent, fighter, scrapper
Derived form: verb withstand2