70 entries under dreadful topic. ×
| serious(adjective, great, unpleasant, heavy, important) | |
| grave(adjective, great, tough, severe, unpleasant) | |
| grievous(adjective, great, tough, severe, unpleasant) | |
| dangerous(adjective, great, tough, severe, unpleasant) | |
| ugly(adjective, tough, severe, unpleasant, heavy) | |
| base(adjective, lead, unpleasant, head, horrible) | |
| fell(adjective, tough, severe, unpleasant, heavy) | |
| formidable(adjective, tough, severe, unpleasant, important) | |
| menacing(adjective, tough, severe, unpleasant, important) | |
| ominous(adjective, unpleasant, heavy, horrible, disagreeable) | |
| shocking(adjective, unpleasant, horrible, serious, disagreeable) | |
| threatening(adjective, tough, severe, unpleasant, heavy) | |
| violent(adjective, unpleasant, energetic, powerful, horrible) | |
| bellicose(adjective, unpleasant, horrible, disagreeable) | |
| cantankerous(adjective, unpleasant, horrible, disagreeable) | |
| crabbed(adjective, unpleasant, horrible, disagreeable) | |
| crabby(adjective, unpleasant, horrible, disagreeable) | |
| despicable(adjective, unpleasant, horrible, disagreeable) | |
| dirty(adjective, unpleasant, horrible, disagreeable) | |
| disagreeable(adjective, unpleasant, horrible, obnoxious) |
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| APA | Smart Define. (2015). major thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/major/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "major thesaurus" https://smartdefine.org/major/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, major thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/major/thesaurus/synonyms>. |
| MLA | Smart Define. "major thesaurus" 6 July 2015. Web. 24 September 2026. <https://smartdefine.org/major/thesaurus/synonyms> |