waterproof
waterproof
adjectiveDefinition of WATERPROOF
made of or treated with material that does not allow water to penetrate <luckily, my backpack is waterproof, so my clothes didn't get wet>
Synonyms leakproof, waterproofed
Related Words rainproof; water-repellent, water-resistant; staunch (also stanch), watertight; nonabsorbent, nonporous; weatherproof
Learn More About
Ask The Editor Videos
Seen & Heard 
What made you want to look up waterproof[adjective]? Please tell us where you read or heard it (including the quote, if possible).
