5
deception(noun, cheat, division, opposition, ripoff)
5
duality(deception, division, dishonesty, deceit, falsehood)
5
hypocrisy(noun, deception, division, dishonesty, fraud)
5
insidiousness(noun, cheat, ripoff, dishonesty, treachery)
4
apostasy(noun, escape, retreat, treachery, departure)
4
conspiracy(noun, plan, scheme, plot, collusion)
4
dirty trick(noun, expression, fake, cheat, deception)
4
dirty work(noun, expression, fake, deception, dishonesty)
4
foul play(noun, expression, idiom, deception, fraud)
4
guile(noun, deception, dishonesty, treachery, fraud)
4
knavery(noun, improbity)
3
deceitfulness(noun, deception, dishonesty, treachery, deceit)
3
dirty pool(noun, expression, fake, deception, division)
3
disbelief(noun, doubt, dishonesty, treachery, deceit)
3
double dealing(expression, idiom, cheat, deception, fraud)
3
doubt(noun, dishonesty, treachery, deceit, lying)
3
false-heartedness(noun, continue, doubt, trust, dishonesty)
3
falsehood(noun, deception, dishonesty, treachery, fraud)
3
flimflam(noun, fake, cheat, ripoff, dishonesty)
3
fraud(noun, cheat, informal, deception, doubt)
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APASmart Define. (2015). perfidy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/perfidy/thesaurus/synonyms
ChicagoSmart Define. 2015. "perfidy thesaurus" https://smartdefine.org/perfidy/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, perfidy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/perfidy/thesaurus/synonyms>.
MLASmart Define. "perfidy thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/perfidy/thesaurus/synonyms>