89 entries under nasty topic. ×
| hurtful(adjective, bad, offensive, negative) | |
| sullen(adjective, mean, bad, wrong, evil) | |
| vicious(adjective, unpleasant, negative, wicked) | |
| obnoxious(adjective, evil, rough, dark) | |
| treacherous(adjective, rough, dark, unpleasant) | |
| glum(adjective, rough, dark, unpleasant) | |
| mischievous(adjective, evil, threatening, injurious) | |
| morose(adjective, rough, sad, dark) | |
| saturnine(adjective, rough, dark, unpleasant) | |
| vengeful(adjective, evil, negative, behavior) | |
| horrible(adjective, obscure, dark, unpleasant) | |
| perverse(adjective, wicked, menacing) | |
| hostile(adjective, mean, bad, wrong, evil) | |
| dreadful(adjective, unpleasant, awful, terrible) | |
| woeful(adjective, evil, sad, unhappy) | |
| apocalyptic(adjective, menacing) | |
| awful(terrible, dreadful, disturbing, scary) | |
| disturbing(adjective, hard, severe, offensive) | |
| ghoulish(adjective, awful, terrible, dreadful) | |
| hellish(adjective, vicious, wicked, hateful) |
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| APA | Smart Define. (2016). sinister thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sinister/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "sinister thesaurus" https://smartdefine.org/sinister/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2016, sinister thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sinister/thesaurus/synonyms>. |
| MLA | Smart Define. "sinister thesaurus" 3 April 2016. Web. 29 September 2026. <https://smartdefine.org/sinister/thesaurus/synonyms> |