Synonyms|111Antonyms|23|Broader|2Narrower|5Related|32
1
firmness(noun, rigidity, hardness)
1
fixedness(noun, protection, security, rigidity, hardness)
1
hindrance(resistance, closure, invulnerability)
1
impenetrableness
1
imperforation
1
impliability(noun, protection, security, rigidity, hardness)
1
inelasticity(noun, protection, security, rigidity, hardness)
1
inflexibility(noun, protection, security, rigidity, hardness)
1
obstruction(resistance, closure, invulnerability)
1
resistance(noun, protection, security, rigidity, hardness)
1
rigidity(noun, protection, security, hardness, density)
1
solidness(noun, density)
1
specific gravity
1
temper(noun, protection, security, rigidity, hardness)
1
tensile strength(noun, expression, protection, security, rigidity)
1
thickness
1
toughness(noun, protection, security, rigidity, hardness)
1
viscosity
0
airtightness
0
alley
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APASmart Define. (2015). impermeability thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impermeability/thesaurus/synonyms
ChicagoSmart Define. 2015. "impermeability thesaurus" https://smartdefine.org/impermeability/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, impermeability thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impermeability/thesaurus/synonyms>.
MLASmart Define. "impermeability thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/impermeability/thesaurus/synonyms>