Nightmare
01
悪夢, 怖い夢
a very scary, unpleasant, or disturbing dream
例
The horror movie I watched last night gave me nightmares.
02
悪夢, 恐怖
a situation or experience that is extremely unpleasant, difficult, or challenging
例
Losing her passport abroad turned into a complete nightmare.
海外でパスポートを失くすことは完全な悪夢に変わった。
03
悪夢, 災い
a person or thing that is difficult, unpleasant, or causes trouble
