13
infidelity(noun, continue, deception, doubt, trust)
11
falsity(noun, continue, deception, doubt, trust)
10
faithlessness(noun, continue, deception, doubt, trust)
10
perfidy(noun, continue, deception, doubt, trust)
9
disloyalty(noun, continue, deception, doubt, trust)
8
falseness(noun, continue, deception, doubt, trust)
7
betrayal(noun, deception, doubt, dishonesty, treachery)
7
disaffection(noun, treachery, deceit, lying, duplicity)
7
perfidiousness(noun, continue, deception, doubt, trust)
7
treachery(noun, continue, deception, doubt, trust)
6
inconstancy(noun, doubt, dishonesty, treachery, fraud)
5
fickleness(noun, doubt, dishonesty, treachery, fraud)
5
treason(noun, deception, doubt, dishonesty, treachery)
4
adultery(noun, duplicity, affair, disloyalty, infidelity)
4
apostasy(noun, treachery, falseness, disloyalty, betrayal)
4
business
4
traitorousness(noun, continue, doubt, trust, dishonesty)
2
affair(noun, duplicity, faithlessness)
2
atheism(noun, impiety)
2
bad faith(noun, expression, treachery, duplicity, falseness)
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APASmart Define. (2015). unfaithfulness thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unfaithfulness/thesaurus/synonyms
ChicagoSmart Define. 2015. "unfaithfulness thesaurus" https://smartdefine.org/unfaithfulness/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unfaithfulness thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unfaithfulness/thesaurus/synonyms>.
MLASmart Define. "unfaithfulness thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/unfaithfulness/thesaurus/synonyms>