32 entries under proof topic. ×

1
hermetically-sealed(adjective, tight, impervious, hermetic)
1
leaktight(adjective, tight, impervious, hermetic)
1
liquid-tight(adjective, tight, impervious, hermetic)
1
nonleaking(adjective, tight, impervious, hermetic)
1
pressureproof(adjective, tight, impervious, hermetic)
1
pressurised(adjective, tight, impervious, hermetic)
1
retentive(adjective, tight, impervious, hermetic)
1
sealed-in(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)
0
reclosable(adjective, tight, impervious, hermetic)
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APASmart Define. (2015). airtight thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/airtight/thesaurus/synonyms
ChicagoSmart Define. 2015. "airtight thesaurus" https://smartdefine.org/airtight/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, airtight thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/airtight/thesaurus/synonyms>.
MLASmart Define. "airtight thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/airtight/thesaurus/synonyms>