Synonyms|41Antonyms|0|Broader|0Narrower|0Related|0
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hermetically-impervious(adjective, tight, proof, impervious, hermetic)
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hermetically-sealed(adjective, tight, proof, impervious, hermetic)
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impermeable(adjective, tight, proof, impervious, hermetic)
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leaktight(adjective, tight, proof, impervious, hermetic)
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lightproof
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liquid-tight(adjective, tight, proof, impervious, hermetic)
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nonleaking(adjective, tight, proof, impervious, hermetic)
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pressureproof(adjective, tight, proof, impervious, hermetic)
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pressurised(adjective, tight, proof, impervious, hermetic)
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pressurized(adjective, tight, proof, impervious, hermetic)
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proof(adjective, tight, impervious, hermetic)
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retentive(adjective, tight, proof, impervious, hermetic)
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sealed-in(adjective, tight, proof, impervious, hermetic)
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snug
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staunch
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tightly sealed(adjective, tight, proof, impervious, hermetic)
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totally enclosed(adjective, tight, proof, impervious, hermetic)
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water-proof(adjective, tight, proof, impervious, hermetic)
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water-tight(adjective, tight, proof, impervious, hermetic)
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windproof
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APASmart Define. (2015). gastight thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/gastight/thesaurus/synonyms
ChicagoSmart Define. 2015. "gastight thesaurus" https://smartdefine.org/gastight/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, gastight thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/gastight/thesaurus/synonyms>.
MLASmart Define. "gastight thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/gastight/thesaurus/synonyms>