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Synonyms

nightmarish

American  
[nahyt-mair-ish] / ˈnaɪtˌmɛər ɪʃ /

adjective

  1. resembling a nightmare, especially in being terrifying, exasperating, or the like.

    his nightmarish experience in a concentration camp.


Other Word Forms

Etymology

Origin of nightmarish

First recorded in 1825–35; nightmare + -ish 1

Explanation

Something nightmarish is truly horrifying, something that would show up in a bad dream. Your nightmarish day might start with a car accident on the way to school and end with a fight with your best friend. A chilling scream in the middle of the night is nightmarish, and traumatic experiences like an episode of bullying or nearly stumbling off the top of a cliff would also be nightmarish. You can also use this adjective to emphasize the unpleasantness of an experience in a slightly exaggerated way: "Ugh, that math test was absolutely nightmarish." Nightmarish things resemble nightmares, or terrifying dreams.

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Vocabulary lists containing nightmarish

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.

Nightmarish traffic around Glasgow's east end meant a fair few fans were not in their seats for kick-off.

From BBC • Oct. 4, 2023

Nightmarish Russian parable about a woman attempting to locate her husband, apparently in a Siberian prison, through a fug of bureaucratic delay and deflection.

From The Guardian • Jun. 19, 2018

Nightmarish conditions will happen, but you don’t have to become another statistic.

From Seattle Times • Mar. 16, 2017

Nightmarish bureaucracy, a three-tiered appeals system and a payment structure that incentivizes lawyers to drag out proceedings mean it's not uncommon for a case to take a decade to reach a final judgment.

From Time • Feb. 9, 2011

Nightmarish tales about bureaucratic morass abound, and it can take on Sisyphean qualities.

From New York Times • Apr. 19, 2010