| clear-cut(caustic, sarcastic) | |
| consuming | |
| containing acid(expression, idiom) | |
| contumelious(mean, sharp, ironic, sarcastic, mocking) | |
| critical | |
| cross | |
| crotchety | |
| cruel | |
| curmudgeonly | |
| curt | |
| cussed(mean, sharp, nasty, bitter, caustic) | |
| deliberately harmful(expression, idiom) | |
| derisive(mean, sharp, nasty, bitter, caustic) | |
| disapproving | |
| discriminating | |
| disillusioned(mean, sharp, nasty, bitter, caustic) | |
| disrespectful(mean, sharp, harsh, caustic, sarcastic) | |
| drilling(caustic, sarcastic) | |
| extremely steep(expression, idiom) | |
| harsh in taste(expression, idiom) |
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| APA | Smart Define. (2015). acerb thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/acerb/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "acerb thesaurus" https://smartdefine.org/acerb/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, acerb thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/acerb/thesaurus/synonyms>. |
| MLA | Smart Define. "acerb thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/acerb/thesaurus/synonyms> |