unauthorized

adjective

Sayun-AW-thuh-ryzdUS/ʌnˈɔθəˌɹaɪzd/UK/ʌnˈɔːθəɹaɪzd/

UK spellingunauthorised

2 meanings of unauthorized

1
done without permissionadjective
Done without permission from the people in charge.
The bank called me about an unauthorized payment on my card.
Making unauthorized copies of the movie is against the law.
Similarunsanctioned, unofficial, illicit, illegal, unapproved
Oppositeauthorized, approved, permitted
2
no right (people)adjective
Not having the power or right to do something.
No unauthorized staff may enter the control room.
An unauthorized person signed the contract, so it is not valid.
Similarunofficial
Oppositeauthorized, official

Practice

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Origin

From un- and authorized.