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impenetrability

[im-pen-i-truh-bil-i-tee, im-pen-]
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noun
  1. the state or quality of being impenetrable.
  2. Physics. that property of matter by virtue of which two bodies cannot occupy the same space simultaneously.

Origin of impenetrability

First recorded in 1655–65; impenetr(able) + -ability
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for impenetrability

Historical Examples

  • But, of course, with his English impenetrability, nobody can tell what he thinks.

    Nostromo: A Tale of the Seaboard

    Joseph Conrad

  • The impenetrability of the embodied Gould Concession had its surface shades.

  • Hence arises her impenetrability to whatever is true in Western thought.

  • It is so suitable a scene for a beginning: the darkness, the mystery, the impenetrability.

  • This impenetrability and something mulish in her attitude annoyed him.

    Saint's Progress

    John Galsworthy


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