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Definition of Impervious
1. Adjective. Not admitting of passage or capable of being affected. "Someone impervious to argument"
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. Adjective. unaffected or unable to be affected by ¹
2. Adjective. preventative of any penetration; impenetrable, impermeable, particularly of water ¹
3. Adjective. immune to damage or effect ¹
¹ Source: wiktionary.com
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
Literary usage of Impervious
Below you will find example usage of this term as found in modern and/or classical literature:
1. Proceedings by American Society of Civil Engineers (1903)
"impervious CONCRETE. An Informal Discussion at the Annual Convention, June llth,
1903.* SUBJECT FOB DISCUSSION: "Is it possible to make Concrete which will ..."
2. The Petroleum Industry of Southeastern Illinois by Willis Stanley Blatchley, Stuart Weller (1906)
"If a shale or other impervious cover did not intervene between the porous reservoir
and the surface, the oil would long since ..."
3. The Genesis of Ore Deposits by František Pošepný, Rossiter Worthington Raymond (1902)
"This would place the more pon/,- parts of a stratum in contact with the confining
impervious stratum below at the synclines and above at the anticlines. ..."
4. The Law of Waters and Water Rights: International, National, State by Henry Philip Farnham (1904)
"Rendering surface impervious.—In its natural condition the ... A change of this
condition so as to render the surface impervious will cause the water to ..."
5. The Lancet (1842)
"Nuck relates the case of a female whose mouth was never moistened with saliva,
because all the salivary ducts were impervious. ..."
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