- Definitions|1
- Thesaurus|180
- Abbreviations|0
70 entries under noun topic. ×
| impenetrability(protection, security, rigidity, hardness) | |
| immunity(support, cover, check, resist) | |
| impermeability(resistance, protection, security, rigidity) | |
| tolerance(resistance, immunity) | |
| insusceptibility(support, cover, check, resist) | |
| invulnerability(resistance, protection, reassurance, impermeability) | |
| resistance(support, cover, check, resist) | |
| thick skin(expression, idiom, ability) | |
| unsusceptibility(resist, capacity, resistance, impermeability) | |
| firmness(rigidity, hardness) | |
| hardness(protection, security, rigidity, density) | |
| compactness(protection, security, rigidity, hardness) | |
| density(protection, security, rigidity, hardness) | |
| durability(protection, security, rigidity, hardness) | |
| fixedness(protection, security, rigidity, hardness) | |
| hindrance(resistance, closure, impermeability, invulnerability) | |
| impedance(resistance, protection, endurance, reassurance) | |
| impliability(protection, security, rigidity, hardness) | |
| indestructibility | |
| inelasticity(protection, security, rigidity, hardness) |
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| APA | Smart Define. (2015). imperviousness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/imperviousness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "imperviousness thesaurus" https://smartdefine.org/imperviousness/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, imperviousness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/imperviousness/thesaurus/synonyms>. |
| MLA | Smart Define. "imperviousness thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/imperviousness/thesaurus/synonyms> |