waterproof

waterproof

adjective

Definition 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

Near Antonyms absorbent, porous; leaky