32 entries under proof topic. ×

1
pressurised(adjective, tight, impervious, hermetic)
1
pressurized(adjective, tight, impervious, hermetic)
1
retentive(adjective, tight, impervious, hermetic)
1
sealed(adjective, tight, impervious, hermetic)
1
sealed-in(adjective, tight, impervious, hermetic)
1
tightly sealed(adjective, tight, impervious, hermetic)
1
totally enclosed(adjective, tight, impervious, hermetic)
1
water-proof(adjective, tight, impervious, hermetic)
1
water-tight(adjective, tight, impervious, hermetic)
1
waterproof(adjective, tight, impervious, hermetic)
1
watertight(adjective, tight, impervious, hermetic)
0
reclosable(adjective, tight, impervious, hermetic)
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APASmart Define. (2013). gas-tight thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/gas-tight/thesaurus/synonyms
ChicagoSmart Define. 2013. "gas-tight thesaurus" https://smartdefine.org/gas-tight/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2013, gas-tight thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/gas-tight/thesaurus/synonyms>.
MLASmart Define. "gas-tight thesaurus" 28 June 2013. Web. 27 September 2026. <https://smartdefine.org/gas-tight/thesaurus/synonyms>