- Definitions|2
- Thesaurus|173
- Abbreviations|0
| obstipation | |
| occlusion | |
| opaqueness | |
| parrying(resistance, invulnerability) | |
| protecting(resistance, invulnerability) | |
| protection(noun, resistance, security, invulnerability, waterproofness) | |
| rebuff(resistance, invulnerability) | |
| refusal(resistance, invulnerability) | |
| resolution | |
| retardation(resistance, invulnerability) | |
| retention | |
| retentiveness | |
| retentivity | |
| safeguard(resistance, invulnerability) | |
| screen(resistance, invulnerability) | |
| shield(resistance, invulnerability) | |
| shutting | |
| shutting up(verb, phrasal verb, closure) | |
| spissitude | |
| stand(resistance, invulnerability) |
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Impermeability on
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| APA | Smart Define. (2015). impermeability thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/impermeability/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impermeability thesaurus" https://smartdefine.org/impermeability/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, impermeability thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/impermeability/thesaurus/synonyms>. |
| MLA | Smart Define. "impermeability thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/impermeability/thesaurus/synonyms> |