One word:
night·mare
ˈnītˌme(ə)r/
noun
a frightening or unpleasant dream.
"I had nightmares after watching the horror movie"
synonyms: bad dream, night terrors; More
a terrifying or very unpleasant experience or prospect.
"the nightmare of racial hatred"
synonyms: ordeal, trial, torment, horror, hell, misery, agony, torture, murder; More
a person, thing, or situation that is very difficult to deal with.
"buying wine can be a nightmare if you don't know enough about it"
synonyms: ordeal, trial, torment, horror, hell, misery, agony, torture, murder; More
Kitchen nightmare
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