18 entries under soft topic. ×
| inflexible(adjective, firm, stiff, yielding) | |
| rigid(adjective, severe, gentle, stiff) | |
| stubborn(adjective, weak, firm, stiff) | |
| obstinate(adjective, firm, determined, stiff) | |
| harsh(adjective, calm, low) | |
| stable(weak, changeable) | |
| stern(adjective, gentle, firm, stiff) | |
| iron(adjective, hard, tough, inflexible) | |
| uniform(yielding, uneven, pliable) | |
| unadaptable(adjective, firm, stiff, yielding) | |
| intransigent | |
| bent | |
| intent | |
| refractory | |
| rock-hard | |
| secure(weak, unreliable) | |
| syrupy(clear, light) | |
| unanxious(weak, uncertain) |
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| APA | Smart Define. (2016). flexible thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/flexible/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "flexible thesaurus" https://smartdefine.org/flexible/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, flexible thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/flexible/thesaurus/antonyms>. |
| MLA | Smart Define. "flexible thesaurus" 28 March 2016. Web. 23 September 2026. <https://smartdefine.org/flexible/thesaurus/antonyms> |