80 entries under adjective topic. ×
| firm | |
| hermetically sealed(expression, idiom) | |
| occult(obscure, dark, deep, mysterious) | |
| pressure-tight(tight, proof, impervious) | |
| proof(tight, impervious) | |
| secluded(close, quiet, obscure, dark) | |
| gastight(tight, proof, impervious) | |
| heavy(obscure, complex, deep, thoughtful) | |
| choked | |
| fast | |
| impassable(solid, dense, unaffected, unyielding) | |
| secured | |
| reclusive(close, quiet, private, isolated) | |
| air-locked(tight, proof, impervious) | |
| air-proof(tight, proof, impervious) | |
| completely sealed(expression, idiom, airtight) | |
| corked | |
| dense | |
| enclosed(tight, proof, impervious) | |
| fastened |
For more, visit
Hermetic on
Power Thesaurus
| APA | Smart Define. (2015). hermetic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hermetic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "hermetic thesaurus" https://smartdefine.org/hermetic/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, hermetic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hermetic/thesaurus/synonyms>. |
| MLA | Smart Define. "hermetic thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/hermetic/thesaurus/synonyms> |