alarming

US /əˈlɑːr.mɪŋ/
UK /əˈlɑːr.mɪŋ/
"alarming" picture
1.

令人担忧的, 令人惊恐的

causing a feeling of fear or anxiety; worrying

:
The rapid spread of the disease is truly alarming.
这种疾病的迅速蔓延确实令人担忧
There was an alarming silence after the explosion.
爆炸后,一片令人担忧的寂静。