32 entries under proof topic. ×

2
pressure-tight(adjective, tight, impervious, hermetic)
2
impermeable(adjective, tight, impervious, hermetic)
2
tight(adjective, impervious, hermetic)
2
waterproof(adjective, tight, impervious, hermetic)
1
air-locked(adjective, tight, impervious, hermetic)
1
air-proof(adjective, tight, impervious, hermetic)
1
air-tight(adjective, tight, impervious, hermetic)
1
airproof(adjective, tight, impervious, hermetic)
1
airtight(adjective, tight, impervious, hermetic)
1
dampproof(adjective, tight, impervious, hermetic)
1
enclosed(adjective, tight, impervious, hermetic)
1
gas-tight(adjective, tight, impervious, hermetic)
1
gas proof(adjective, tight, impervious, hermetic)
1
gastight(adjective, tight, impervious, hermetic)
1
hermetic(adjective, tight, impervious)
1
hermetical(adjective, tight, impervious, hermetic)
1
hermetically-impervious(adjective, tight, impervious, hermetic)
1
hermetically-sealed(adjective, tight, impervious, hermetic)
1
leaktight(adjective, tight, impervious, hermetic)
1
liquid-tight(adjective, tight, impervious, hermetic)
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APASmart Define. (2015). retentive thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/retentive/thesaurus/synonyms
ChicagoSmart Define. 2015. "retentive thesaurus" https://smartdefine.org/retentive/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, retentive thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/retentive/thesaurus/synonyms>.
MLASmart Define. "retentive thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/retentive/thesaurus/synonyms>