- Definitions|1
- Thesaurus|454
- Abbreviations|0
| leak-proof(adjective, dense, resistant, impervious, impenetrable) | |
| leakproof | |
| leaktight(adjective, tight, proof, impervious, hermetic) | |
| lightproof | |
| lighttight | |
| liquid-tight(adjective, tight, proof, impervious, hermetic) | |
| miserly | |
| noiseproof | |
| nonleaking(adjective, tight, proof, impervious, hermetic) | |
| oilproof | |
| oiltight | |
| pressureproof(adjective, tight, proof, impervious, hermetic) | |
| pressurised(adjective, tight, proof, impervious, hermetic) | |
| proof against | |
| punctureproof | |
| raintight | |
| resistant | |
| retentive(adjective, tight, proof, impervious, hermetic) | |
| rustproof | |
| sealable |
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| APA | Smart Define. (2015). airtight thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/airtight/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "airtight thesaurus" https://smartdefine.org/airtight/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, airtight thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/airtight/thesaurus/synonyms>. |
| MLA | Smart Define. "airtight thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/airtight/thesaurus/synonyms> |