1. [ adjective ] not permitting the passage of water
Synonyms: waterproofed rainproof
Related terms: tight
2. [ noun ] (clothing) any fabric impervious to water
Related terms: fabric
3. [ verb ] make watertight

"Waterproof the coat"

Related terms: seal
4. [ noun ] (clothing) a water-resistant coat
Synonyms: raincoat
Related terms: coat greatcoat macintosh trench_coat Burberry
Similar spelling:   waterproofed