Wordnet 3.0
ADJECTIVE (1)
1.
not admitting of passage or capable of being affected;
- Example: "a material impervious to water"- Example: "someone impervious to argument"[syn: impervious, imperviable]
The Collaborative International Dictionary of English v.0.48:
Imperviable \Im*per"vi*a*ble\, a.
Not pervious; impervious. [R.] -- Im*per"vi*a*ble*ness, n.
[R.]
[1913 Webster]
WordNet (r) 3.0 (2006):
imperviable
adj 1: not admitting of passage or capable of being affected; "a
material impervious to water"; "someone impervious to
argument" [syn: impervious, imperviable] [ant:
pervious]