unbeknownst

'ʌnbi'nәunst

s (usually used with `to') occurring or existing without the knowledge of
r without someone's knowledge

[方]=unbeknown

46,314

BNC 频率

19,906

使用频率

un- 表示否定，be 是“存在”的意思，known 是“已知的”，因此 unbeknownst 可以理解为“未知的”或“未被知道的”。

例句

1. She left the party early, unbeknownst to her friends.

她早早离开了聚会，而她的朋友们对此并不知情。

2. Unbeknownst to him, his surprise birthday party was being planned.

他并不知道，他的惊喜生日派对正在被筹备中。

3. Unbeknownst to the students, the teacher had prepared a difficult test.

学生们并不知道，老师准备了一场难度很大的考试。