unexpectedly
adv. 出乎意料地，意外地
例句
They had arrived unexpectedly.
他们意外地到达了。
《牛津词典》
The plane was unexpectedly delayed.
飞机意外地延误了。
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。
《柯林斯英汉双解大词典》
