59 entries under adjective topic. ×

11
watertight(water, tight, proof, impervious)
10
rainproof(water, resistant, impervious, watertight)
9
impermeable(water, tight, proof, impervious)
9
tight(water, proof, impervious, hermetic)
7
sealed(water, tight, proof, impervious)
7
airtight(water, tight, proof, impervious)
6
hermetic(tight, proof, impervious, airtight)
6
proof(tight, impervious, hermetic)
4
impervious
4
leakproof
3
waterproofed
3
snug
3
dampproof(tight, proof, impervious, hermetic)
3
fast
3
firm
3
gastight(tight, proof, impervious, hermetic)
3
pressure-tight(tight, proof, impervious, hermetic)
2
hermetically sealed
2
stormproof(watertight, storm-resistant)
2
water-resistant(resistant, impervious)
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APASmart Define. (2015). waterproof thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/waterproof/thesaurus/synonyms
ChicagoSmart Define. 2015. "waterproof thesaurus" https://smartdefine.org/waterproof/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, waterproof thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/waterproof/thesaurus/synonyms>.
MLASmart Define. "waterproof thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/waterproof/thesaurus/synonyms>