non-porous
adjectiveUK /nɒnˈpɔː.rəs/
US /nɑːnˈpɔːr.əs/
Something non-porous does not let water or air pass through it.
The glass jar is non-porous, so the water stays inside.
RELATED WORDS
OTHER MEANINGS
2. Not allowing liquids to soak in.
The non-porous countertop wipes clean easily.
3. Having no tiny holes through which things can pass.
Plastic is non-porous, unlike a sponge.
4. Unable to absorb moisture.
These non-porous tiles stay dry in the bathroom.