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adj

unauthorized

adj
1
Done without official permission.
"The company blocked unauthorized access to its servers."
"An unauthorized biography of the singer was published without her approval."

How to Use Unauthorized

Learner’s notes

In plain EnglishLacking the proper permission or approval.

UK vs US

Spelled "unauthorised" in British English.

Common pairings
unauthorized access unauthorized use unauthorized personnel
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The company blocked _____ access to its servers.

Rhymes for unauthorized

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Definitions: FreeDict original editorial