Synonyms of impervious
- 1. impervious (vs. pervious), imperviable, fast, acid-fast, colorfast, greaseproof, mothproof, moth-resistant, proof(predicate), resistant, corrosion-resistant, rot-resistant, runproof, ladder-proof, run-resistant, soundproof, impermeable
- usage: not admitting of passage or capable of being affected; "a material impervious to water"; "someone impervious to argument"
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Definition and meaning of impervious (Dictionary)