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nightmare

nightmare

404 1.5
A very frightening dream that wakes you and makes you afraid
  • noun
  • /ˈnaɪtˌmɛr/
translation icon : pesadilla
  • After watching a scary movie, she had a vivid nightmare that kept her awake all night.
  • frequent nightmares
  • dreams or nightmares
  • still have nightmares

I've had one nightmare countless times throughout my life.

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Examples

  • I still have nightmares about tests I haven't studied for.

  • Years after they graduate, many people still have nightmares about being unprepared for a test.

    Academic text (2011)
  • What is the number one most common nightmare people have?

  • You must have been having a nightmare.

  • That was his worst nightmare.

  • And be rescued from this awful nightmare!

  • I keep having this reoccurring nightmare.

  • I've had the same recurring nightmare about it ever since.

  • She's waking up with nightmares because of what you have done.

  • Even now, after twenty-five years, one of my worst nightmares is to arrive somewhere overdressed.

    Fiction book (1990)

Antonyms

sweet dreams
  • Informal
1.4

To tell someone you hope they have nice dreams before they sleep

Compounds

1 4.4

A time when many cars move very slowly and cause long delays

How Bad

hell
  • Informal
3.7
hardship
128 3.4
nightmare
404 1.5
difficulty
651 2.4
inconvenience
107 4.3

Surface Forms

nightmare singular
nightmares plural

Morphology

nightmare = night + mare (opaque) = night + mare

Although formed from 'night' + 'mare', 'mare' here refers to an archaic demon causing bad dreams (not a female horse), so learners cannot reliably derive the modern meaning from the parts.

Etymology

Nightmare comes from an old belief that a mare was an 'evil spirit' that sat on a sleeping person's chest and gave them bad dreams. So nightmare now means a very frightening or unpleasant dream.