imperviousness
透不過
Im·per·vi·ous a. 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.
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imperviousness
n : resistance to penetration by a liquid [syn: impenetrability]
[ant: penetrability, penetrability]