動詞 alarm:

1. fill with apprehension or alarm; cause to be unpleasantly surprised
   同義詞：dismay, alarm, appal, appall, horrify
2. warn or arouse to a sense of danger or call to a state of preparedness
   同義詞：alarm, alert

形容詞 alarming:

1. causing alarm or fear

1. He looked alarming.
   他看起來很驚人。
2. The rapid spread of the disease is alarming the medical authorities.
   這種疾病的迅速蔓延使醫(yī)療當局感到憂慮不安。
3. One that is striking or alarming.
   引人注目的人，驚人的人