24 entries under hardness topic. ×
| resistance(noun, firmness, protection, security, toughness) | |
| tensile strength(noun, expression, protection, security) | |
| durity | |
| impermeability(noun, protection, security, density) |
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| APA | Smart Define. (2015). rigidity thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/rigidity/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "rigidity thesaurus" https://smartdefine.org/rigidity/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, rigidity thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/rigidity/thesaurus/synonyms>. |
| MLA | Smart Define. "rigidity thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/rigidity/thesaurus/synonyms> |