Correct
不透水
/ bù tòushuǐ /
Strokes
Definition
waterproof/watertight/impermeable
Example
As an Adjective
waterproof; watertight; impermeable
1
Bù
不
tòu
透
shuǐcéng
水层
impermeable stratum; impervious bed; confining bed
2
Bù
不
tòu
透
shuǐcāng
水舱
watertight compartment