| impenetrability | 1. Quality of being impenetrable. 2. <physics> That property in virtue of which two portions of matter can not at the same time occupy the same portion of space. 3. Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness. Origin: Cf. F. Impenetrabilite. Source: Websters Dictionary (01 Mar 1998) |
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