57 entries under adjective topic. ×
| dreadful | |
| fearful | |
| fearsome | |
| fierce | |
| formidable | |
| frightful | |
| ghastly | |
| grisly | |
| gruesome | |
| gruff | |
| hateful | |
| heinous | |
| hideous | |
| horrendous | |
| horrid | |
| loathsome | |
| marvelous | |
| monstrous | |
| nasty | |
| odious |
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| APA | Smart Define. (2016). swell thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/swell/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "swell thesaurus" https://smartdefine.org/swell/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, swell thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/swell/thesaurus/antonyms>. |
| MLA | Smart Define. "swell thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/swell/thesaurus/antonyms> |