- Definitions|2
- Thesaurus|2.1k
- Abbreviations|0
| sophistical(adjective, wrong, fake, counterfeit, dishonest) | |
| thievish | |
| traitorous(adjective, wrong, false, dishonest, deceitful) | |
| trumped up(expression, adjective, wrong, fake, counterfeit) | |
| uncandid | |
| unconverted(adjective, false, dishonest, dubious, fickle) | |
| unfaithful(noun, adjective, wrong, false, dishonest) | |
| unfrank | |
| unloyal(adjective, wrong, false, dishonest, dubious) | |
| unproven(adjective, false, untrue, illogical, deceptive) | |
| unsincere | |
| unveracious | |
| vain(adjective, false, untrue, illogical, deceptive) | |
| without basis(expression, adjective, false, untrue, illogical) | |
| without foundation(expression, adjective, false, untrue, illogical) | |
| adulterated(adjective, fake, counterfeit, sham, phony) | |
| adulterine(fickle, untrustworthy, unprincipled, dirty-dealing) | |
| adulterous(fickle, untrustworthy, unprincipled, dirty-dealing) | |
| afield | |
| alloyed(adjective, fake, counterfeit, sham, phony) |
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| APA | Smart Define. (2015). untruthful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/untruthful/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "untruthful thesaurus" https://smartdefine.org/untruthful/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, untruthful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/untruthful/thesaurus/synonyms>. |
| MLA | Smart Define. "untruthful thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/untruthful/thesaurus/synonyms> |