Found 2 items, similar to impenetrability.
English → English (WordNet) Definition: impenetrability impenetrability n 1: resistance to penetration by a liquid [syn: imperviousness] [ant: penetrability, penetrability] 2: incomprehensibility by virtue of being too dense to understand [syn: impenetrableness]
English → English (gcide) Definition: Impenetrability Impenetrability \Im*pen`e*tra*bil"i*ty\, n. [Cf. F. imp['e]n['e]trabilit['e].] 1. Quality of being impenetrable. [1913 Webster] 2. (Physics) That property in virtue of which two portions of matter can not at the same time occupy the same portion of space. [1913 Webster] 3. Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness. [1913 Webster]