unforeseen

/ˌʌnfɔːˈsiːn/📚 15852 62 1
If something that has happened was unforeseen, it was not expected to happen or known about beforehand. 未预见的

adjective [原级]未预见到的,无法预料的,意料之外的

Radiation may damage cells in a way that was previously unforeseen.
辐射也许会以以前未预见的方式损坏细胞。

unforeseen 出现在下面的课文中
Lesson 33 A day to remember unforeseen 形容词: 意料之外的
单词造句: