- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
55 entries under immoral topic. ×
| knavish(adjective, hard, evil, rough, nasty) | |
| unfair(adjective, false, corrupt, dishonest) | |
| bent(adjective, false, dishonest, deceitful) | |
| dishonorable(adjective, mean, bad, hard, evil) | |
| shady(adjective, false, dishonest, deceitful) | |
| sinister(adjective, false, corrupt, dishonest) | |
| venal(adjective, mean, base, dishonest) | |
| vicious(adjective, hard, evil, rough, nasty) | |
| fraudulent(adjective, false, dishonest, deceitful) | |
| nefarious(adjective, dishonest, rotten, untrustworthy) | |
| rotten(adjective, hard, evil, rough, nasty) | |
| underhanded(adjective, mean, base, false, dishonest) | |
| base(adjective, mean, dishonest, rotten) | |
| iniquitous(adjective, dishonest, rotten, untrustworthy) | |
| mercenary(adjective, dishonest, rotten, untrustworthy) | |
| unethical(adjective, dishonest, deceitful, rotten) | |
| bribable(adjective, dishonest, rotten, untrustworthy) | |
| debauched(adjective, dishonest, rotten, untrustworthy) | |
| exploiting(adjective, dishonest, rotten, untrustworthy) | |
| extortionate(adjective, dishonest, rotten, untrustworthy) |
For more, visit
Perfidious on
Power Thesaurus
| APA | Smart Define. (2016). perfidious thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/perfidious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "perfidious thesaurus" https://smartdefine.org/perfidious/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, perfidious thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/perfidious/thesaurus/synonyms>. |
| MLA | Smart Define. "perfidious thesaurus" 4 March 2016. Web. 28 September 2026. <https://smartdefine.org/perfidious/thesaurus/synonyms> |