nightmare

/ˈnaɪtˌmɛr/
noun
  1. A frightening or unpleasant dream.
    • The child cried out in the middle of the night because of a nightmare.
    • She woke up in a cold sweat after a terrible nightmare.
    • He used to have nightmares about being chased by monsters.
  2. A very unpleasant, difficult, or frightening experience or situation.
    • Planning a wedding can turn into a logistical nightmare.
    • The traffic jam was a complete nightmare.
    • Losing my passport abroad was an absolute nightmare.
Synonyms
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