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(), 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. -- Imper"viously, adv. -- Imper"viousness, n. スポンサード リンク
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