Imperviousness

noun

Definitions

Noun
  1. 1
    The state of being impervious.; The quality of being unable to be affected. uncountable
  2. 2
    the quality of being impenetrable (by people or light or missiles etc.) wordnet
  3. 3
    The state of being impervious.; The ability to prevent any penetration. uncountable

Etymology

From impervious + -ness.

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