形容词使人害怕的，扰乱人心的; 使人惊慌的; 告急的; 危言耸听的

动词警告(alarm的现在分词)

1. 使人惊动的：alarmedly 惊恐地 | alarming 使人惊动的 | alarmism 危言耸听

2. 使人惊恐：alarming devices 警报装置 | alarming 使人惊恐 | albedo perception 反照知觉

3. 信号报警：15. 遥控 Remote controlling | 16. 信号报警 Alarming | 17. 声光信号 Acoustic and light signals

1. 使人惊恐的；令人忧虑的；让人担心的
Something that is alarming makes you feel afraid or anxious that something unpleasant or dangerous might happen.

e.g. The disease has spread at an alarming rate.
这种病以惊人的速度传播开来。
e.g. ...the alarming increase in crime.
令人忧虑的犯罪攀升现象