alarming

1. ADJ Something that is alarming makes you feel afraid or anxious that something unpleasant or dangerous might happen. 令人惊恐的

The disease has spread at an alarming rate. 这种疾病已经以惊人的速度传播开来。

2. alarminglyADV 令人惊恐地

...the alarmingly high rate of heart disease. …高得惊人的心脏病发病率。