70 entries under treacherous topic. ×

4
deceptive(noun, adjective, bad, false, dishonest)
4
disaffected(adjective, untrue, untrustworthy, unfaithful)
4
irresponsible(adjective, dishonest, deceitful, unreliable, insecure)
4
questionable(adjective, dishonest, deceitful, unreliable, insecure)
4
seditious(adjective, untrue, untrustworthy, unfaithful)
4
trustless(adjective, dishonest, deceitful, unreliable, fickle)
4
truthless(adjective, true, unreliable, falsehood, insecure)
4
two-timing(adjective, false, dishonest, deceitful, unreliable)
4
uncertain(adjective, unsettled, hesitant, dubious, unreliable)
4
unsteady(adjective, unreliable, changeable, insecure)
4
unsure(adjective, uncertain, dishonest, unsettled, hesitant)
3
cheating(adjective, false, dishonest, cunning, lying)
3
fair-weather(adjective, dishonest, deceitful, unreliable, fickle)
3
fast and loose(expression, adjective, idiom, dishonest, immoral)
3
lying(noun, adjective, false, dishonest, cunning)
3
slick(adjective, false, dishonest, deceitful)
3
subversive(adjective, untrue, untrustworthy, unfaithful)
3
unloyal(adjective, wrong, false, dishonest, unsound)
2
base(adjective, mean, dishonest, immoral, rotten)
2
double-crossing(adjective, false, dishonest, changeable, fickle)
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APASmart Define. (2015). faithless thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/faithless/thesaurus/synonyms
ChicagoSmart Define. 2015. "faithless thesaurus" https://smartdefine.org/faithless/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, faithless thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/faithless/thesaurus/synonyms>.
MLASmart Define. "faithless thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/faithless/thesaurus/synonyms>