waterproof

¹wa·ter·proof

adj \ˈwȯ-tər-ˌprüf, ˈwä-\

Definition of WATERPROOF

: impervious to water; especially : covered or treated with a material (as a solution of rubber) to prevent permeation by water

— wa·ter·proof·ness noun

Examples of WATERPROOF

1. This suntan lotion is waterproof.
2. <luckily, my backpack is waterproof, so my clothes didn't get wet>

First Known Use of WATERPROOF

1736

Related to WATERPROOF

Synonyms: leakproof, waterproofed

Related Words: rainproof; water-repellent, water-resistant; staunch (also stanch), watertight; nonabsorbent, nonporous; weatherproof

Near Antonyms: absorbent, porous; leaky

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Rhymes with WATERPROOF

burglarproof, gable roof, gambrel roof, hit the roof, on the hoof, ovenproof, pilferproof, shatterproof, tamperproof, through the roof, veto-proof, warp and woof, weatherproof