Usually means: Inability to be penetrated or understood.
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We found 15 dictionaries that define the word impenetrableness:

General (13 matching dictionaries)
  1. impenetrableness: Collins English Dictionary
  2. impenetrableness: Vocabulary.com
  3. impenetrableness: Wordnik
  4. impenetrableness: Wiktionary
  5. Impenetrableness, impenetrableness: Dictionary.com
  6. Impenetrableness: Online Plain Text English Dictionary
  7. impenetrableness: Webster's Revised Unabridged, 1913 Edition
  8. impenetrableness: Rhymezone
  9. Impenetrableness: AllWords.com Multi-Lingual Dictionary
  10. impenetrableness: Webster's 1828 Dictionary
  11. impenetrableness: FreeDictionary.org
  12. impenetrableness: Mnemonic Dictionary
  13. Impenetrableness: TheFreeDictionary.com

Business (1 matching dictionary)
  1. impenetrableness: Legal dictionary

Computing (1 matching dictionary)
  1. impenetrableness: Encyclopedia

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Definitions from Wiktionary (impenetrableness)

▸ noun:  The quality of being impenetrable.

Similar:
impenetrability, imperviableness, imperviousness, imperviability, penetrableness, impenitibleness, impermeability, impregnableness, impassableness, immitigability, more...

Opposite:
permeability, penetrability, openness, accessibility

Types:
solidity, denseness, opacity, sturdiness, toughness, more...

▸ Words similar to impenetrableness

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▸ Idioms related to impenetrableness

▸ Wikipedia articles (New!)

▸ Popular adjectives describing impenetrableness

▸ Words that often appear near impenetrableness

▸ Rhymes of impenetrableness

▸ Invented words related to impenetrableness

Similar:
impenetrability, imperviableness, imperviousness, imperviability, penetrableness, impenitibleness, impermeability, impregnableness, impassableness, immitigability, more...

Opposite:
permeability, penetrability, openness, accessibility

Types:
solidity, denseness, opacity, sturdiness, toughness, more...



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