If something is watertight and doesn’t let fluids pass through, it is this

Answer of Word Craze If something is watertight and doesnt let fluids pass through it is this

This is a tricky question of Word Craze which last appeared on Level 1740. Meanings or answers can change from time to time with each game update if you noticed a change on the answer of this clue please do let us know by commenting below so we can fix it A.S.A.P.
The solution below is:

For other clue answers of Level 1740 Word Craze Level 1740 Answer open the the level link.