impenetrability

/ɪmˌpɛnɪtrəˈbɪləti/
noun
  1. The quality of being impossible to pass through or enter.
    • The fortress was famous for the impenetrability of its walls.
    • The impenetrability of the jungle made the expedition extremely difficult.
    • Scientists studied the impenetrability of certain materials to radiation.
  2. The quality of being impossible to understand or comprehend.
    • The impenetrability of the ancient text frustrated the scholars.
    • His explanation only added to the impenetrability of the concept.
    • The impenetrability of her emotions made it hard for others to connect with her.
What does "impenetrability" mean? | whatsthatwordmean | whatsthatwordmean