He despaired of a nightmarish vision of the future.

他对未来的想象如噩梦一般，令他感到绝望。

He doesn't want to go through such a nightmarish journey anymore.

他再也不愿意经历这样噩梦般的旅程了。

He dreamed a nightmarish scene at night.

他晚上梦到了非常可怕的场景。

The party began to take on an unreal, almost nightmarish quality.

聚会开始呈现出虚幻、近乎梦魇般的气氛。

She described a nightmarish scene of dead bodies lying in the streets.

她描述了街头遍地横尸的恶梦般场景。

Clearly, today was going to be nightmarish.

显然，今天将是梦魇般的一天。

I would not say verging on nightmarish fiction.

我不会说濒临恶梦般的小说。

Well, even given our nightmarish software issues, not really.

那么，即使我们的梦魇软件的问题，而不是真的。