'Permissibly' definitions:

Definition of 'permissibly'

From: WordNet
adverb
In a permissible manner [syn: permissibly, allowably] [ant: impermissibly]

Definition of 'Permissibly'

From: GCIDE
  • Permissible \Per*mis"si*ble\, a. That may be permitted; allowable; admissible. -- {Per*mis"si*ble*ness}, n. -- {Per*mis"si*bly}, adv. [1913 Webster]