Definitions for: Impervious

[adj] not admitting of passage or capable of being affected; "a material impervious to water"; "steel impervious to bullets"; "someone impervious to argument"

Webster (1913) Definition: Im*per"vi*ous, a. [L. impervius; pref. im- not +
per through + via way. See Voyage.]
Not pervious; not admitting of entrance or passage through;
as, a substance impervious to water or air.

This gulf impassable, impervious. --Milton.

The minds of these zealots were absolutely impervious.
--Macaulay.

Syn: Impassable; pathless; impenetrable; imperviable;
impermeable. -- Im*per"vi*ous*ly, adv. --
Im*per"vi*ous*ness, n.

Synonyms: greaseproof, imperviable, ladder-proof, mothproof, moth-resistant, proof(p), resistant, runproof, run-resistant, soundproof

Antonyms: pervious

See Also: impermeable

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