耐たい水すい

noun, noun which may take the genitive case particle 'no'

water-resistant; waterproof

Describes materials, coatings, or products that resist water penetration. Often used attributively with の, as in 耐水加工 (waterproofing treatment).

• この時計とけいは耐たい水すい性せい能のうが高たかい。

  This watch has high water resistance.

• 耐たい水すいスプレーを靴くつに吹ふきかけた。

  I sprayed waterproofing spray on my shoes.