imperviable

from 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}]

from 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]

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