34 entries under tight topic. ×

15
hermetic(verb, adjective, proof, closed)
10
sealed(adjective, proof, impervious, hermetic)
9
watertight(adjective, proof, impervious, hermetic)
8
air-tight(adjective, proof, impervious, hermetic)
7
impermeable(adjective, proof, impervious, impenetrable)
7
impervious(adjective, fast, short, dense)
7
waterproof(adjective, water, proof, impervious)
5
gas-tight(adjective, proof, impervious, hermetic)
4
airproof(adjective, proof, impervious, hermetic)
4
hermetical(adjective, proof, impervious, hermetic)
3
dampproof(adjective, proof, impervious, hermetic)
3
gastight(adjective, proof, impervious, hermetic)
3
pressure-tight(adjective, proof, impervious, hermetic)
3
proof(adjective, impervious, hermetic)
2
enclosed(adjective, proof, impervious, hermetic)
2
pressurized(adjective, proof, impervious, hermetic)
2
tightly sealed(expression, adjective, idiom, proof)
1
air-locked(adjective, proof, impervious, hermetic)
1
air-proof(adjective, proof, impervious, hermetic)
1
gas proof(adjective, proof, impervious, hermetic)
<12>
11 years ago|4.7k views|share |citing 
APASmart Define. (2015). airtight thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/airtight/thesaurus/synonyms
ChicagoSmart Define. 2015. "airtight thesaurus" https://smartdefine.org/airtight/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, airtight thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/airtight/thesaurus/synonyms>.
MLASmart Define. "airtight thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/airtight/thesaurus/synonyms>