frightening

a. 令人恐惧的, 引起突然惊恐的

The magnitude of the epidemic was frightening.

这种流行病传播范围之广令人惶惶不安。

The jet zoomed low over the houses, frightening everyone.

那架喷气式飞机低飞掠过房顶, 隆隆声把大家吓了一跳.