| stability(firmness, stiffness) | |
| staunchness | |
| steadfastness | |
| tenseness(pressure, tension, tightness, tautness) | |
| tensity(balance, tension, tightness, tautness) | |
| uncompromisingness | |
| unyieldingness(obstinacy, stubbornness, inflexibility, ruthlessness, pitilessness) | |
| abidingness | |
| absoluteness | |
| adamancy(noun, perseverance, obstinacy, stubbornness, inflexibility) | |
| adamantness | |
| attention to fact(expression, idiom) | |
| bullheadedness(noun, perseverance, obstinacy, stubbornness, inflexibility) | |
| callosity | |
| care for truth(expression, idiom) | |
| changelessness | |
| cold-bloodedness(noun, ruthlessness, pitilessness, mercilessness, relentlessness) | |
| compactness(noun, protection, security, hardness, density) | |
| concentration | |
| contumacy(noun, perseverance, obstinacy, stubbornness, inflexibility) |
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| APA | Smart Define. (2015). rigidity thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rigidity/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigidity thesaurus" https://smartdefine.org/rigidity/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, rigidity thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rigidity/thesaurus/synonyms>. |
| MLA | Smart Define. "rigidity thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/rigidity/thesaurus/synonyms> |