- Definitions|2
- Thesaurus|1.8k
- Abbreviations|0
260 entries under adjective topic. ×
| deluding(mean, bad, evil, base) | |
| delusive(bad, wrong, false, dishonest) | |
| difficult(hard, evil, rough, nasty) | |
| disagreeable(hard, evil, rough, nasty) | |
| down(hard, evil, rough, nasty) | |
| exploiting(dishonest, immoral, rotten, untrustworthy) | |
| extortionate(dishonest, immoral, rotten, untrustworthy) | |
| fast and loose(expression, idiom, dishonest, immoral) | |
| faulty | |
| fixed(dishonest, immoral, rotten, untrustworthy) | |
| foresworn(false, fickle, untrue, untrustworthy) | |
| formidable(hard, evil, rough, nasty) | |
| forsworn(mean, bad, base, false) | |
| gone to the dogs(expression, idiom, dishonest, immoral) | |
| hard(evil, rough, nasty, rude) | |
| hard-nosed(hard, evil, rough, nasty) | |
| heretical | |
| ignoble(hard, evil, rough, nasty) | |
| ill-natured | |
| ill-tempered(hard, evil, rough, nasty) |
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| APA | Smart Define. (2016). perfidious thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/perfidious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "perfidious thesaurus" https://smartdefine.org/perfidious/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, perfidious thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/perfidious/thesaurus/synonyms>. |
| MLA | Smart Define. "perfidious thesaurus" 4 March 2016. Web. 26 September 2026. <https://smartdefine.org/perfidious/thesaurus/synonyms> |