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Noun: impenetrability  im`pe-ni-tru'bi-li-tee
  1. The quality of being impenetrable (by people or light or missiles etc.)
    - imperviousness
     
  2. Incomprehensibility by virtue of being too dense to understand
    - impenetrableness

Derived forms: impenetrabilities

See also: impenetrable

Type of: incomprehensibility, quality

Antonym: penetrability

Encyclopedia: Impenetrability

Nearest

impel
impelled
impellent
impeller
impelling
impend
impendence
impendency
impendent
impending
impenetrability
impenetrable
impenetrableness
impenetrably
impenitence
impenitency
impenitent
impenitently
imperative
imperative form
imperative mood