'Permissibility' definitions:

Definition of 'permissibility'

From: WordNet
noun
Admissibility as a consequence of being permitted [ant: impermissibility]

Definition of 'Permissibility'

From: GCIDE
  • Permissibility \Per*mis`si*bil"i*ty\, n. The quality of being permissible; permissibleness; allowableness. [1913 Webster]