- Definitions|2
- Thesaurus|1.5k
- Abbreviations|0
possible profanity
| cruel(adjective, person, evil, nasty, violent) | |
| diabolic(adjective, kind, unusual, wonderful, marvelous) | |
| hellish(adjective, kind, evil, vile, wicked) | |
| atrocious(adjective, person, evil, wicked, bad behavior) | |
| evil(adjective, wicked, bad behavior, diabolical, aroused negative) | |
| satanic(adjective, kind, evil, wicked, immoral) | |
| diabolical(adjective, animal, mean, kind, evil) | |
| devilish(adjective, animal, mean, bad, kind) | |
| wicked(adjective, bad, wrong, evil, violent) | |
| brutal(adjective, person, evil, nasty, violent) | |
| infernal(adjective, kind, evil, vile, wicked) | |
| demonic(adjective, evil, dark, vile, wicked) | |
| malicious(adjective, animal, person, mean, violent) | |
| sinful(adjective, bad, wrong, evil, violent) | |
| malevolent(adjective, person, wicked, bad behavior, unwarmhearted) | |
| vicious(adjective, bad, wrong, evil, nasty) | |
| inhuman(adjective, animal, evil, nasty, violent) | |
| bad(adjective, wrong, evil, violent, wild) | |
| barbaric(adjective, animal, person, mean, awful) | |
| sinister(adjective, person, evil, unwarmhearted) |
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| APA | Smart Define. (2016). fiendish thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fiendish/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fiendish thesaurus" https://smartdefine.org/fiendish/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, fiendish thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fiendish/thesaurus/synonyms>. |
| MLA | Smart Define. "fiendish thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/fiendish/thesaurus/synonyms> |