Hypertext Webster Gateway: "impervious"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Impervious \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.
From WordNet (r) 1.7 (wn)
impervious
adj : not admitting of passage or capable of being affected; "a
material impervious to water"; "steel impervious to
bullets"; "someone impervious to argument" [syn: {imperviable}]
[ant: {pervious}]
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