Impenetrability Synonyms and Antonyms

ĭm-pĕnĭ-trə-bĭlĭ-tē
Incomprehensibility by virtue of being too dense to understand
(Noun)
Synonyms:
  1. impenetrableness
The quality of being impenetrable (by people or light or missiles etc.)
(Noun)
Synonyms:
  1. imperviousness
Antonyms:
  1. penetrability