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。