unexpected

US /ˌʌn.ɪkˈspek.tɪd/
UK /ˌʌn.ɪkˈspek.tɪd/
"unexpected" picture
1.

出乎意料的, 意想不到的

not expected or foreseen; surprising

:
The news of her resignation was completely unexpected.
她辞职的消息完全是出乎意料的。
We had an unexpected visitor this morning.
今天早上我们有一个意想不到的访客。