unauthorized

/ʌnˈɔθəraɪzd/
adjective
  1. Not having official permission or approval.
    • The employee made an unauthorized withdrawal from the company account.
    • An unauthorized biography of the singer was published without her consent.
    • Parking in this lot without a permit is unauthorized and may result in a fine.
Antonyms
What does "unauthorized" mean? | whatsthatwordmean | whatsthatwordmean