- Definitions|1
- Thesaurus|180
- Abbreviations|0
| infarction | |
| interfering with | |
| intransigence(noun, resistance, impermeability, invulnerability, implacability) | |
| keddah | |
| let-up(renitency, breakoff) | |
| numbness(apathy, armor) | |
| obduracy(noun, unyieldingness) | |
| obstipation | |
| occlusion | |
| opacity | |
| opaqueness | |
| parrying(noun, resistance, impermeability, invulnerability) | |
| pigheadedness(noun, implacability) | |
| protecting(noun, resistance, protection, reassurance, impermeability) | |
| protection(noun, resistance, security, reassurance, impermeability) | |
| rebuff(noun, resistance, impermeability, invulnerability) | |
| refusal(noun, resistance, impermeability, invulnerability) | |
| renitence(protection, endurance, reassurance, patrol, renitency) | |
| renitency(protection, endurance, reassurance, patrol, breakoff) | |
| retardation(noun, resistance, impermeability, invulnerability) |
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| APA | Smart Define. (2015). imperviousness thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/imperviousness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "imperviousness thesaurus" https://smartdefine.org/imperviousness/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, imperviousness thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/imperviousness/thesaurus/synonyms>. |
| MLA | Smart Define. "imperviousness thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/imperviousness/thesaurus/synonyms> |