Synonyms|159Antonyms|47|Broader|4Narrower|4Related|240
1
sealed-in(adjective, tight, proof, impervious, hermetic)
1
secured
1
shatterproof
1
shellproof
1
shut fast
1
smokeproof
1
smoketight
1
soundproof
1
staunch
1
stormproof
1
stormtight
1
stuffed
1
tighter
1
totally enclosed(adjective, tight, proof, impervious, hermetic)
1
unopened(verb, closed)
1
up(verb, closed)
1
water-proof(adjective, tight, proof, impervious, hermetic)
1
water-repellant
1
water-tight(adjective, tight, proof, impervious, hermetic)
1
weatherproof
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APASmart Define. (2015). airtight thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/airtight/thesaurus/synonyms
ChicagoSmart Define. 2015. "airtight thesaurus" https://smartdefine.org/airtight/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, airtight thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/airtight/thesaurus/synonyms>.
MLASmart Define. "airtight thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/airtight/thesaurus/synonyms>