unauthorised
- a not endowed with authority
- s without official authorization
- On 23 May 2006, following the passing by Parliament of the Serious Organised Crime and Police Act' prohibiting unauthorised demonstrations within a one kilometre radius of .
- As Mousavi's supporters gather at Valisar Square, the BBC is reporting that foreign media have been banned from covering it in addition to other "unauthorised events.
- Thirty French legionnaires will stay on to prevent unauthorised landings.