- Definitions|1
- Thesaurus|514
- Abbreviations|0
| fallacious | |
| falsehearted(adjective, mean, bad, evil, base) | |
| misleading | |
| plotting | |
| shady(adjective, dishonest, cunning, deceitful, dubious) | |
| sharp | |
| smooth | |
| sneaking(dishonest, cunning, deceitful, ambiguous, crafty) | |
| traitorous(adjective, mean, bad, evil, base) | |
| unprincipled(dishonest, dubious, fickle, suspicious, untrustworthy) | |
| unreliable | |
| unscrupulous(adjective, mean, bad, base, dishonest) | |
| ancillary(ambiguous, rambling, incidental, circuitous, tortuous) | |
| apostate(adjective, mean, bad, evil, base) | |
| artificial | |
| bent | |
| cagey | |
| canting(adjective, mean, bad, base, false) | |
| capricious | |
| cheating(adjective, deceitful, lying, double, double-faced) |
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| APA | Smart Define. (2015). duplicitous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/duplicitous/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "duplicitous thesaurus" https://smartdefine.org/duplicitous/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, duplicitous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/duplicitous/thesaurus/synonyms>. |
| MLA | Smart Define. "duplicitous thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/duplicitous/thesaurus/synonyms> |