frightening
adj
causing fear; alarming 引起恐惧的; 惊恐的; 可怕的
a frightening possibility, situation, development, etc 引起恐惧的可能性、 形势、 发展等
It is frightening even to think of the horrors of nuclear war. 核战争的恐怖状况连想都不敢想.
It's a shame I haven't seen more of you these recent years.
真遗憾,最近几年我未能见到你。
Winter was coming on and the hills threatened the surrounding villages with destruction, for heavy rain would not only wash away the soil but would cause serious floods as well.