Found 2 items, similar to imperviable.
English → English (WordNet) Definition: imperviable imperviable adj : not admitting of passage or capable of being affected; “a material impervious to water”; “someone impervious to argument” [syn: impervious] [ant: pervious]
English → English (gcide) Definition: Imperviable Imperviable \Im*per"vi*a*ble\, a. Not pervious; impervious. [R.] -- Im*per"vi*a*ble*ness, n. [R.] [1913 Webster]