6 entries under resistant topic. ×

10
waterproof(adjective, water, impervious, watertight)
6
watertight(adjective, impervious, waterproof)
4
impermeable(adjective, impervious, watertight, waterproof)
3
impervious(adjective, waterproof)
1
solid(adjective, impervious, waterproof)
1
water-resistant(adjective, impervious, waterproof)
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APASmart Define. (2015). rainproof thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/rainproof/thesaurus/synonyms
ChicagoSmart Define. 2015. "rainproof thesaurus" https://smartdefine.org/rainproof/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, rainproof thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/rainproof/thesaurus/synonyms>.
MLASmart Define. "rainproof thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/rainproof/thesaurus/synonyms>