| turbulent(adjective, strong, cool, smooth, unsettled) | |
| uncontrolled(adjective, strong, cool, agitated) | |
| uncool(adjective, strong, cool, agitated) | |
| unkind(adjective, strong, cool, agitated) | |
| abrading | |
| acerbic | |
| acidulous | |
| aggressive | |
| ambitious | |
| argumentative | |
| austere(adjective, severe) | |
| bellicose | |
| belligerent | |
| biting | |
| blustering | |
| burdensome | |
| callous | |
| chronic | |
| churlish | |
| cloudy |
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| APA | Smart Define. (2015). mild thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/mild/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "mild thesaurus" https://smartdefine.org/mild/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, mild thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/mild/thesaurus/antonyms>. |
| MLA | Smart Define. "mild thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/mild/thesaurus/antonyms> |