Synonyms|159Antonyms|47|Broader|4Narrower|4Related|240

3 entries under waterproof topic. ×

2
rainproof(adjective, resistant, impervious, watertight)
0
dense(adjective, resistant, impervious, impenetrable, watertight)
0
impassable(adjective, dense, resistant, impervious, impenetrable)
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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>