| slashing(adjective, attack, respect) | |
| sour-smelling | |
| spiteful | |
| stern(adjective, severe, bleak, stark, austere) | |
| stringent(adjective, strong, severe, sharp, powerful) | |
| truculent(adjective, attack, respect) | |
| unpleasant(adjective, severe, sharp, harsh, bitter) | |
| unpleasantly pungent | |
| acerbate | |
| acetic(adjective, severe, sharp, harsh, unpleasant) | |
| acetose(adjective, sharp, unpleasant, bitter, sour) | |
| acidulated(adjective, sharp, unpleasant, bitter, sour) | |
| acidulent | |
| alert(adjective, keen, sharp, dry, bitter) | |
| antagonistic | |
| antipathetic | |
| awkward(tough, harsh, grumpy, bad-tempered, tetchy) | |
| bad(adjective, sharp, unpleasant, bitter, sour) | |
| barbed | |
| belligerent |
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| APA | Smart Define. (2015). acrid thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/acrid/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "acrid thesaurus" https://smartdefine.org/acrid/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, acrid thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/acrid/thesaurus/synonyms>. |
| MLA | Smart Define. "acrid thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/acrid/thesaurus/synonyms> |