- Definitions|2
- Thesaurus|402
- Abbreviations|0
| shell game(noun, expression, fake, treachery, dodge) | |
| shuffle | |
| skepticism(noun, doubt, dishonesty, treachery, deceit) | |
| skulduggery | |
| slipperiness(deviousness, craftiness) | |
| speciousness(falseness, falsity, inaccuracy, spuriousness, disingenuousness) | |
| spuriousness(falseness, falsity, inaccuracy, disingenuousness) | |
| story(deception, dishonesty, deceit, falseness, falsity) | |
| subversiveness | |
| tails | |
| tale(deception, dishonesty, deceit, falseness, falsity) | |
| transaction | |
| trust | |
| uncandidness(deception, dishonesty, deceit, falseness, falsity) | |
| unfairness | |
| unreality(deception, dishonesty, deceit, falseness, falsity) | |
| untrustworthiness(noun, treachery, falseness, unfaithfulness) | |
| untruth(deception, dishonesty, deceit, falseness, falsity) | |
| untruthfulness(noun, deceit, lying, deceitfulness, wrongness) | |
| venality |
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| APA | Smart Define. (2015). perfidiousness thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/perfidiousness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "perfidiousness thesaurus" https://smartdefine.org/perfidiousness/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, perfidiousness thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/perfidiousness/thesaurus/synonyms>. |
| MLA | Smart Define. "perfidiousness thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/perfidiousness/thesaurus/synonyms> |