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Definitions

nightmare

[nahyt-mair] / ˈnaɪtˌmɛər /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Read more: Could a jet-fuel shortage turn your European summer vacation into a nightmare?

From MarketWatch • May 12, 2026

Being stuck there in a human traffic jam is a nightmare many experienced hikers and climbers would do anything to avoid.

From Los Angeles Times • May 6, 2026

Flashes of publishing-world satire lighten the mood as the weekend celebration turns into a nightmare.

From The Wall Street Journal • May 1, 2026

"Trying to manage medication for Parkinson's Disease is a nightmare at the best of times, so thinking there is a shortage is incredibly worrying and scary. These medications make my life liveable," says Chris.

From BBC • Apr. 30, 2026

Long gashes, like wounds in the earth from some terrified beast clawing at a nightmare, raked the ground next to the crater on the mountain top.

From "Mountain of Fire" by Rebecca E. F. Barone