| extremist(noun, adjective, radical, thorough, rebel) |
| fanatic(noun, interest, radical, rebel, progressive) |
| mercenary(noun, tough, opponent, champion, combatant) |
| pugilist(noun, tough, opponent, champion, combatant) |
| soldier(noun, tough, opponent, champion, combatant) |
| zealot(noun, radical, fanatic, enthusiast, extremist) |
| adversary(noun, combatant, fighter) |
| antagonistic(adjective, sharp, nasty, cross, energetic) |
| assailant(noun, combatant, fighter) |
| competitive(adjective, mean, nasty, unfriendly, hateful) |
| foe(noun, combatant, fighter) |
| man-at-arms(noun, combatant, fighter) |
| opponent(noun, combatant, fighter) |
| tough(noun, adjective, smart, energetic, vigorous) |
| unpeaceful(adjective, warfare) |
| energetic(adjective, tough, smart, violent, vigorous) |
| ferocious(adjective, hostile, belligerent, quarrelsome) |
| fierce(adjective, nasty, determined, hostile, spirited) |
| forcible(adjective, powerful, aggressive) |
| protestor(noun, objector, terrorist) |