70 entries under obnoxious topic. ×
| vicious(adjective, strong, kind, severe, harsh) | |
| truculent(adjective, animal, mean, strong, kind) | |
| dangerous(adjective, strong, tough, severe, intense) | |
| dreadful(adjective, unpleasant, fear, horrible, disagreeable) | |
| formidable(adjective, tough, severe, unpleasant, important) | |
| terrible(adjective, strong, severe, intense, unpleasant) | |
| grave(adjective, tough, severe, unpleasant, deep) | |
| horrible(adjective, strong, severe, intense, unpleasant) | |
| serious(adjective, unpleasant, heavy, important, significant) | |
| shocking(adjective, unpleasant, fear, horrible, disagreeable) | |
| ugly(adjective, tough, severe, unpleasant, important) | |
| grievous(adjective, tough, severe, unpleasant, heavy) | |
| major(adjective, tough, severe, unpleasant, heavy) | |
| sinister(adjective, unpleasant, horrible, disagreeable, dreadful) | |
| violent(adjective, strong, severe, harsh, intense) | |
| evil(adjective, unpleasant, horrible, disagreeable, dreadful) | |
| forbidding(adjective, unpleasant, horrible, disagreeable, dreadful) | |
| malevolent(adjective, strong, severe, harsh, intense) | |
| menacing(adjective, strong, tough, severe, intense) | |
| noisome(adjective, unpleasant, horrible, disagreeable, dreadful) |
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| APA | Smart Define. (2016). fell thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/fell/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "fell thesaurus" https://smartdefine.org/fell/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, fell thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/fell/thesaurus/synonyms>. |
| MLA | Smart Define. "fell thesaurus" 26 February 2016. Web. 24 September 2026. <https://smartdefine.org/fell/thesaurus/synonyms> |