unexpected

/ˌʌnɪkˈspektɪd/📚 3593 3四级六级考研
If an event or someone's behaviour is unexpected, it surprises you because you did not think that it was likely to happen. 出人意料的

adjective [原级]想不到的,意外的

He made a brief, unexpected appearance at the office.
他在办公室短暂、出人意料地露了一面。

unexpected 出现在下面的课文中(提供视频、音频及笔记等可系统性学习)
课程介绍
Lesson 42 Modern cavemen
单词造句:
网友用“Unexpected”造句精选
Moss had clamped an unexpectedly strong grip on his arm. 莫斯出乎意料地牢牢抓住他的手臂。
Support came from an unexpected direction. 一个出人意料的来源提供了帮助。