70 entries under noun topic. ×

1
inflexibility(protection, security, rigidity, hardness)
1
invincibility
1
obstruction(resistance, closure, impermeability, invulnerability)
1
rigidity(protection, security, hardness, density)
1
solidity(resistance, protection, security, rigidity)
1
striking back(expression, resistance, protection, endurance)
1
temper(protection, security, rigidity, hardness)
1
tensile strength(expression, protection, security, rigidity)
1
tightness
1
toughness(protection, security, rigidity, hardness)
0
battle(resistance, impermeability, invulnerability)
0
blocking(resistance, impermeability, invulnerability)
0
check(resistance, impermeability, invulnerability)
0
combat(resistance, impermeability, invulnerability)
0
contention(resistance, impermeability, invulnerability)
0
counteraction(resistance, impermeability, invulnerability)
0
cover(resistance, impermeability, invulnerability)
0
defiance(resistance, impermeability, invulnerability)
0
detention(resistance, impermeability, invulnerability)
0
fight(resistance, impermeability, invulnerability)
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APASmart Define. (2015). imperviousness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/imperviousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "imperviousness thesaurus" https://smartdefine.org/imperviousness/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, imperviousness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/imperviousness/thesaurus/synonyms>.
MLASmart Define. "imperviousness thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/imperviousness/thesaurus/synonyms>