- Definitions|2
- Thesaurus|173
- Abbreviations|0
| impermeableness | |
| cohesion | |
| impenetrability(noun, protection, security, rigidity, hardness) | |
| imperviousness(noun, resistance, protection, security, rigidity) | |
| solidity(noun, resistance, protection, security, rigidity) | |
| density(noun, protection, security, rigidity, hardness) | |
| closeness | |
| consistency | |
| constipation(closure, density) | |
| hardness(noun, protection, security, rigidity, density) | |
| opacity | |
| tightness | |
| blockade | |
| closure | |
| compactness(noun, protection, security, rigidity, hardness) | |
| congestion | |
| consistence | |
| contraction | |
| durability(noun, protection, security, rigidity, hardness) | |
| embolus |
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| APA | Smart Define. (2015). impermeability thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impermeability/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impermeability thesaurus" https://smartdefine.org/impermeability/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, impermeability thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impermeability/thesaurus/synonyms>. |
| MLA | Smart Define. "impermeability thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/impermeability/thesaurus/synonyms> |