75 entries under adjective topic. ×
| grumpy | |
| indissoluble | |
| peremptory | |
| permanent | |
| piggish | |
| relentless | |
| rocky(inflexible, unyielding) | |
| rugged | |
| snappy | |
| starchy | |
| stony | |
| unfeeling | |
| unkind | |
| set(firm, inflexible, hardened) | |
| wiry |
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| APA | Smart Define. (2016). flexible thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/flexible/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "flexible thesaurus" https://smartdefine.org/flexible/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, flexible thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/flexible/thesaurus/antonyms>. |
| MLA | Smart Define. "flexible thesaurus" 28 March 2016. Web. 27 September 2026. <https://smartdefine.org/flexible/thesaurus/antonyms> |