Word Meanings - UNPENETRABLE - Book Publishers vocabulary database

Impenetrable.

Related words: (words related to UNPENETRABLE)

• IMPENETRABLENESS
  The quality of being impenetrable; impenetrability.
• IMPENETRABLE
  Having the property of preventing any other substance from occupying the same space at the same time. 3. Inaccessible, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or