1
air-tight(adjective, tight, proof, impervious, hermetic)
1
airproof(adjective, tight, proof, impervious, hermetic)
1
airtight(adjective, tight, proof, impervious, hermetic)
1
dampproof(adjective, tight, proof, impervious, hermetic)
1
enclosed(adjective, tight, proof, impervious, hermetic)
1
evocative
1
faithful
1
gas-tight(adjective, tight, proof, impervious, hermetic)
1
gas proof(adjective, tight, proof, impervious, hermetic)
1
gastight(adjective, tight, proof, impervious, hermetic)
1
good
1
gripping
1
hermetic(adjective, tight, proof, impervious)
1
hermetical(adjective, tight, proof, impervious, hermetic)
1
hermetically-impervious(adjective, tight, proof, impervious, hermetic)
1
hermetically-sealed(adjective, tight, proof, impervious, hermetic)
1
immovable
1
impregnable
1
lasting
1
leaktight(adjective, tight, proof, impervious, hermetic)
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APASmart Define. (2015). retentive thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/retentive/thesaurus/synonyms
ChicagoSmart Define. 2015. "retentive thesaurus" https://smartdefine.org/retentive/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, retentive thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/retentive/thesaurus/synonyms>.
MLASmart Define. "retentive thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/retentive/thesaurus/synonyms>