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impervious: Meaning and Definition of

im•per•vi•ous

Pronunciation: (im-pûr'vē-us), [key]
— adj.
  1. not permitting penetration or passage; impenetrable: The coat is impervious to rain.
  2. incapable of being injured or impaired: impervious to wear and tear.
  3. incapable of being influenced, persuaded, or affected: impervious to reason; impervious to another's suffering.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
imperturbation impetigo
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