unauthorized adjective
also British unauthorised /ˌʌnˈɑːθəˌraɪzd/
also British unauthorised /ˌʌnˈɑːθəˌraɪzd/
Learner's definition of UNAUTHORIZED
: without permission : not authorized未经授权的;未经许可的;未经批准的 -
an unauthorized use of government vehicles对政府车辆的擅自使用
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Unauthorized personnel are not allowed in the building.人员未经许可不准进入大楼。
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an unauthorized biography [=a biography that is written without the permission of the subject]未经授权的传记