375 entries under adjective topic. ×
| cantankerous | |
| censorious(severe, speech, unfriendly, bitter) | |
| crabby(severe, nasty, speech, hostile) | |
| curmudgeonly | |
| devastating | |
| envenomed(pain, malevolence) | |
| grim(severe, discourtesy) | |
| grouchy | |
| pointed(strong, severe, sharp, nasty) | |
| poisonous | |
| resentful(severe, nasty, hostile, sulky) | |
| rigorous | |
| rude(hostile, belligerent, quarrelsome) | |
| salty(mean, strong, evil, sharp) | |
| savage(hostile, belligerent, quarrelsome) | |
| short-tempered | |
| spicy(strong, keen, sharp, powerful) | |
| tangy(strong, sharp, unpleasant, powerful) | |
| terse | |
| austere(mean, severe, sharp, nasty) |
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| APA | Smart Define. (2015). caustic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/caustic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "caustic thesaurus" https://smartdefine.org/caustic/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, caustic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/caustic/thesaurus/synonyms>. |
| MLA | Smart Define. "caustic thesaurus" 21 July 2015. Web. 25 September 2026. <https://smartdefine.org/caustic/thesaurus/synonyms> |