53 entries under impermeability topic. ×

8
impenetrability(noun, protection, security, rigidity, hardness)
5
immunity(noun, support, cover, check, resist)
3
insusceptibility(noun, support, cover, check, resist)
3
invulnerability(noun, resistance, protection, reassurance)
3
resistance(noun, support, cover, check, resist)
3
unsusceptibility(noun, resist, capacity, resistance)
2
hardness(noun, protection, security, rigidity, density)
1
compactness(noun, protection, security, rigidity, hardness)
1
density(noun, protection, security, rigidity, hardness)
1
durability(noun, protection, security, rigidity, hardness)
1
fixedness(noun, protection, security, rigidity, hardness)
1
hindrance(noun, resistance, closure, invulnerability)
1
impliability(noun, protection, security, rigidity, hardness)
1
inelasticity(noun, protection, security, rigidity, hardness)
1
inflexibility(noun, protection, security, rigidity, hardness)
1
obstruction(noun, resistance, closure, invulnerability)
1
rigidity(noun, protection, security, hardness, density)
1
solidity(noun, resistance, protection, security, rigidity)
1
temper(noun, protection, security, rigidity, hardness)
1
tensile strength(noun, expression, protection, security, rigidity)
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APASmart Define. (2015). imperviousness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/imperviousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperviousness thesaurus" https://smartdefine.org/imperviousness/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, imperviousness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/imperviousness/thesaurus/synonyms>.
MLASmart Define. "imperviousness thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/imperviousness/thesaurus/synonyms>