68 entries under adjective topic. ×
| stable(clear, weak, sound, soft) | |
| steady(clear, sound, stable, fixed) | |
| peaceful | |
| strong(clear, sound, steady) | |
| firm(noun, clear, sound, steady) | |
| sturdy(solid, durable) | |
| certain(clear, sound, steady) | |
| constant(clear, sound, sympathetic, steady) | |
| sane(sound, reasonable, stupid, insane) | |
| balanced | |
| lasting | |
| easy(clear, sound, steady) | |
| placid | |
| reliable(clear, bad, weak, sound) | |
| secure(verb, clear, weak, sound) | |
| smooth(dull, strong, hard, sharp) | |
| sound(clear, steady) | |
| stationary | |
| sure(clear, sound, steady) | |
| together(upset, composed) |
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| APA | Smart Define. (2016). unstable thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unstable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "unstable thesaurus" https://smartdefine.org/unstable/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, unstable thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unstable/thesaurus/antonyms>. |
| MLA | Smart Define. "unstable thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/unstable/thesaurus/antonyms> |