1
collaborator(spy, turncoat, traitor, conspirator, plotter)
1
competitor(noun, opposition, agent, villain, rebel)
1
conniver
1
conspirer
1
contender(noun, opposition, agent, villain, rebel)
1
convict
1
crier(source, sneak, rat, informant, squealer)
1
crook
1
crumb
1
debaucher
1
deep throat(expression, source, grass, sneak, informer)
1
defamer(noun, opposition, agent, villain, rebel)
1
delator
1
deluder
1
desperate criminal
1
despoiler
1
detractor(noun, opposition, agent, villain, rebel)
1
disputant(noun, opposition, agent, villain, rebel)
1
divulger
1
duper
11 years ago|6.7k views|share |citing 
APASmart Define. (2015). betrayer thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/betrayer/thesaurus/synonyms
ChicagoSmart Define. 2015. "betrayer thesaurus" https://smartdefine.org/betrayer/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, betrayer thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/betrayer/thesaurus/synonyms>.
MLASmart Define. "betrayer thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/betrayer/thesaurus/synonyms>