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EnglishEdit

EtymologyEdit

mildew +‎ -proof

AdjectiveEdit

mildewproof (comparative more mildewproof, superlative most mildewproof)

  1. Resistant to mildew.

VerbEdit

mildewproof (third-person singular simple present mildewproofs, present participle mildewproofing, simple past and past participle mildewproofed)

  1. (transitive) To make resistant to mildew.