noun
verb
Freq #2602
Meanings
-
1
noun
A frightening or upsetting dream.
I woke up shaking after a terrible nightmare.
-
2
noun
A very difficult or unpleasant situation or experience.
The traffic on the way home was an absolute nightmare.
Thesaurus
Word family
Forms
nightmares
Derived forms
daymareflightmarefrightmareknightmaremid-nightmaremidnightmaremorningmarenightmarelikenightmariousnightmarishnightmary
Etymology
From Middle English nyghtmare, from Old English *nihtmare, equivalent to night + mare (“evil spirit believed to afflict a sleeping person”). Cognate with Scots nichtmare and nichtmeer, Dutch nachtmerrie, Middle Low German nachtmār, German Nachtmahr.
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