- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
110 entries under untrustworthy topic. ×
| inconstant(adjective, false, dishonest, immoral, rotten) | |
| underhand(adjective, false, corrupt, dishonest, immoral) | |
| unprincipled(adjective, false, dishonest, immoral, deceitful) | |
| fickle(adjective, false, dishonest, dubious, untrue) | |
| knavish(adjective, hard, evil, rough, nasty) | |
| bent(adjective, false, dishonest, immoral, deceitful) | |
| disaffected(adjective, untrue, treacherous, unfaithful) | |
| seditious(adjective, untrue, treacherous, unfaithful) | |
| shady(adjective, false, dishonest, immoral, deceitful) | |
| two-timing(adjective, wrong, false, dishonest, deceitful) | |
| untruthful(noun, adjective, wrong, false, dishonest) | |
| venal(adjective, mean, base, dishonest, immoral) | |
| fraudulent(adjective, false, dishonest, immoral, deceitful) | |
| nefarious(adjective, dishonest, immoral, rotten) | |
| rotten(adjective, hard, evil, rough, nasty) | |
| subversive(adjective, untrue, treacherous, unfaithful) | |
| underhanded(adjective, mean, base, false, dishonest) | |
| alienated(adjective, untrue, treacherous, unfaithful) | |
| base(adjective, mean, dishonest, immoral, rotten) | |
| capricious(adjective, false, dishonest, dubious) |
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| APA | Smart Define. (2016). perfidious thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/perfidious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "perfidious thesaurus" https://smartdefine.org/perfidious/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, perfidious thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/perfidious/thesaurus/synonyms>. |
| MLA | Smart Define. "perfidious thesaurus" 4 March 2016. Web. 1 October 2026. <https://smartdefine.org/perfidious/thesaurus/synonyms> |