18
traitorous(adjective, trust, fickle, untrustworthy, unprincipled)
12
perfidious(adjective, fickle, untrustworthy, unprincipled, disloyal)
12
treasonable(adjective, trust, fickle, untrustworthy, unprincipled)
11
disloyal(adjective, fickle, untrustworthy, unprincipled, dirty-dealing)
11
faithless(adjective, fickle, untrustworthy, unprincipled, disloyal)
11
subversive(adjective, destructive, disloyal, disobedient, rebellious)
11
treacherous(adjective, fickle, untrustworthy, unprincipled, disloyal)
10
seditious(adjective, trust, disobedient, rebellious)
9
unfaithful(adjective, fickle, untrustworthy, unprincipled, disloyal)
5
apostate(adjective, disloyal)
5
insurgent
5
untrue(adjective, disloyal)
4
recreant(adjective, disloyal)
4
renegade
4
revolutionary(adjective, rebellious)
3
dissident
3
false
3
insubordinate(adjective, disloyal, disobedient)
3
mutinous(adjective, disloyal, disobedient)
3
rebellious(adjective, disobedient)
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APASmart Define. (2015). treasonous thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/treasonous/thesaurus/synonyms
ChicagoSmart Define. 2015. "treasonous thesaurus" https://smartdefine.org/treasonous/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, treasonous thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/treasonous/thesaurus/synonyms>.
MLASmart Define. "treasonous thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/treasonous/thesaurus/synonyms>