- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
260 entries under adjective topic. ×
| sinister(false, corrupt, dishonest, immoral) | |
| slick(false, dishonest, deceitful, treacherous) | |
| two-timing(wrong, false, dishonest, deceitful) | |
| untruthful(noun, wrong, false, dishonest) | |
| venal(mean, base, dishonest, immoral) | |
| vicious(hard, evil, rough, nasty) | |
| wily(false, deceitful, lying, subtle) | |
| Machiavellian | |
| apostate(mean, bad, evil, low) | |
| baneful | |
| criminal | |
| deceiving(mean, bad, evil, false) | |
| designing(false, deceitful, lying, subtle) | |
| devious(noun, mean, bad, base) | |
| felonious | |
| fraudulent(false, dishonest, immoral, deceitful) | |
| hostile(hard, evil, rough, nasty) | |
| malignant | |
| nasty(hard, rough, rude, cruel) | |
| nefarious(dishonest, immoral, rotten, untrustworthy) |
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| APA | Smart Define. (2016). perfidious thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/perfidious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "perfidious thesaurus" https://smartdefine.org/perfidious/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, perfidious thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/perfidious/thesaurus/synonyms>. |
| MLA | Smart Define. "perfidious thesaurus" 4 March 2016. Web. 25 September 2026. <https://smartdefine.org/perfidious/thesaurus/synonyms> |