unauthorized /ʌnˈɔːθəˌraɪzd/

BRIT also unauthorised

• 1. 

  ADJ If something is unauthorized, it has been produced or is happening without official permission. 未经授权的; 未经许可的

  例：

  ...a new unauthorized biography of the Russian president.

  …一本新的未经授权的俄罗斯总统传记。

  例：

  It has also been made quite clear that the trip was unauthorized.

  这次旅行是未经过批准的，这一点也已经非常清楚了。