C1adjectiveformalsciencetechnology
US/ɪmˈpɜːr.vi.əs/
UK/ɪmˈpɜː.vi.əs/
not allowing water or gas to pass through; also not affected or influenced by something
In context
Concrete and asphalt are impervious, so rain cannot soak into the ground.
The suit is made from a fabric that is impervious to water and wind.
Some leaders seem impervious to the scientific evidence on climate change.
Words that go with impervious
adjective + preposition
- impervious toGlass is impervious to most chemicals.
adjective + noun
- impervious surfacesMore impervious surfaces in cities mean more flooding after heavy rain.
- impervious layerAn impervious layer of clay stops the water from draining away.
adverb + adjective
- largely imperviousThe old stone walls are largely impervious to damp.
- completely imperviousThe new coating makes the roof completely impervious to rain.