unauthorized
01
未经授权的, 无权的
not endowed with authority
02
未经授权的, 非法的
not officially permitted or approved by a recognized authority
例子
Accessing the confidential files without permission is considered unauthorized.
未经许可访问机密文件被视为未经授权。
The transaction was declined because it was made with an unauthorized credit card.
交易被拒绝，因为是用未经授权的信用卡进行的。
词汇树
unauthorized
authorized
authorize
authority
