unauthorized
Concise Oxford English Dictionary © 2008 Oxford University Press:
unauthorized /ʌnˈɔːθərʌɪzd/ (or unauthorised)
▶adjective not having official permission or approval.
'unauthorized' also found in these Oxford entries:
bucket shop
- filibuster
- firewall
- fly-post
- fly-poster
- graffiti
- hack
- piracy
- terrorism
- trapdoor

