| watertight(adjective, water, tight, proof, impervious) | |
| rainproof(adjective, water, resistant, impervious, watertight) | |
| impermeable(adjective, water, tight, proof, impervious) | |
| tight(adjective, water, proof, impervious, hermetic) | |
| sealed(adjective, water, tight, proof, impervious) | |
| airtight(adjective, water, tight, proof, impervious) | |
| hermetic(adjective, tight, proof, impervious, airtight) | |
| proof(adjective, tight, impervious, hermetic) | |
| raincoat(noun, clothing) | |
| weatherproof(safety, watertight) | |
| impervious(adjective, water) | |
| leakproof(adjective, watertight) | |
| overcoat(noun, clothing) | |
| seal(noun, verb, close, stick, fasten) | |
| waterproofed | |
| mackintosh(noun, clothing) | |
| snug(adjective, safety) | |
| dampproof(adjective, tight, proof, impervious, hermetic) | |
| fast | |
| fireproof |
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| APA | Smart Define. (2015). waterproof thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/waterproof/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "waterproof thesaurus" https://smartdefine.org/waterproof/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2015, waterproof thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/waterproof/thesaurus/synonyms>. |
| MLA | Smart Define. "waterproof thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/waterproof/thesaurus/synonyms> |