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Definition of Impervious
1. Adjective. Not admitting of passage or capable of being affected. "Someone impervious to argument"
Exact synonyms: Imperviable
Also: Impermeable
Similar to: Fast, Acid-fast, Colorfast, Greaseproof, Moth-resistant, Mothproof, Proof, Resistant, Corrosion-resistant, Rot-resistant, Ladder-proof, Run-resistant, Runproof, Soundproof
Derivative terms: Imperviousness
Antonyms: Pervious
Also: Impermeable
Similar to: Fast, Acid-fast, Colorfast, Greaseproof, Moth-resistant, Mothproof, Proof, Resistant, Corrosion-resistant, Rot-resistant, Ladder-proof, Run-resistant, Runproof, Soundproof
Derivative terms: Imperviousness
Antonyms: Pervious
Definition of Impervious
1. a. Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air.
Definition of Impervious
1. [adj]
Medical Definition of Impervious
1. Not permeable; not permitting the passage of substances (e.g., liquids, gases) or heat through a membrane or other structure. Synonym: impervious. Origin: L. Im-permeabilis, not to be passed through (05 Mar 2000)
Lexicographical Neighbors of Impervious
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