- Definitions|2
- Thesaurus|347
- Abbreviations|0
21 entries under security topic. ×
| watertightness(noun, protection, waterproofness) |
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| APA | Smart Define. (2015). impenetrability thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/impenetrability/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impenetrability thesaurus" https://smartdefine.org/impenetrability/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, impenetrability thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/impenetrability/thesaurus/synonyms>. |
| MLA | Smart Define. "impenetrability thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/impenetrability/thesaurus/synonyms> |