1
leader
1
agent(noun, opposition, rival, competitor, antagonist)
1
alienate(verb, action, act, discord, detachment)
1
assassin(noun, side, villain, enemy, traitor)
1
bandit(noun, opposition, rival, competitor, antagonist)
1
contrarian
1
counteractive
1
criminal(noun, opposition, rival, competitor, antagonist)
1
detach(verb, action, act, discord, detachment)
1
disaffect(verb, action, act, discord, detachment)
1
disband(verb, action, act, discord, detachment)
1
disengage(verb, action, act, discord, detachment)
1
dissentient
1
dissolve(verb, action, act, discord, detachment)
1
divide(verb, action, act, discord, detachment)
1
divorce(verb, action, act, discord, detachment)
1
estrange(verb, action, act, discord, detachment)
1
falsifier(noun, side, villain, enemy, traitor)
1
guerrilla(noun, opposition, rival, competitor, antagonist)
1
informer(noun, side, villain, enemy, traitor)
10 years ago|3.7k views|share |citing 
APASmart Define. (2016). ally thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ally/thesaurus/antonyms
ChicagoSmart Define. 2016. "ally thesaurus" https://smartdefine.org/ally/thesaurus/antonyms (accessed September 24, 2026).
HarvardSmart Define 2016, ally thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ally/thesaurus/antonyms>.
MLASmart Define. "ally thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/ally/thesaurus/antonyms>