- Definitions|2
- Thesaurus|437
- Abbreviations|0
114 entries under adjective topic. ×
| air-locked(tight, proof, impervious, hermetic) | |
| air-proof(tight, proof, impervious, hermetic) | |
| airproof(tight, proof, impervious, hermetic) | |
| close-grained(close, set, hard, tough) | |
| costive | |
| dampproof(tight, proof, impervious, hermetic) | |
| enclosed(tight, proof, impervious, hermetic) | |
| fast | |
| gas-tight(tight, proof, impervious, hermetic) | |
| gas proof(tight, proof, impervious, hermetic) | |
| gastight(tight, proof, impervious, hermetic) | |
| hermetical(tight, proof, impervious, hermetic) | |
| hermetically-impervious(tight, proof, impervious, hermetic) | |
| hermetically-sealed(tight, proof, impervious, hermetic) | |
| impassive(unaffected, unyielding, unbending, resistant) | |
| incomprehensible | |
| incompressible(firm, density) | |
| leak-proof | |
| leaktight(tight, proof, impervious, hermetic) | |
| liquid-tight(tight, proof, impervious, hermetic) |
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| APA | Smart Define. (2015). impermeable thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/impermeable/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "impermeable thesaurus" https://smartdefine.org/impermeable/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, impermeable thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/impermeable/thesaurus/synonyms>. |
| MLA | Smart Define. "impermeable thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/impermeable/thesaurus/synonyms> |