NIGHTMARE Synonyms: 116 Similar and Opposite Words

nightmare 1 of 2

noun

ˈnīt-ˌmer

Definition of nightmare

as in agony

a situation or state that causes great suffering and unhappiness that 20-page exam was a nightmare

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Antonyms & Near Antonyms

nightmare

2 of 2

adjective

as in horrific

extremely disturbing or repellent survivors of a nuclear holocaust would surely face a nightmare existence

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Antonyms & Near Antonyms

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of nightmare

Noun

The food obsessions, fears and even nightmares went away, but so too did Jasper’s grasp of the seriousness of his condition. — Anna Cooban, CNN Money, 15 Oct. 2026 The second thing that made test screenings such a nightmare was that, inside the stomach, Austin was on top of a gimbal being controlled by six or so people. — Brian Davids, HollywoodReporter, 14 Oct. 2026

Adjective

This is the nightmare scenario behind the Kessler syndrome, a cascading chain of collisions that could render entire orbital pathways unusable. — Alan Bradley, Space.com, 2 Aug. 2026 But the 22-year-old is not alone in having a nightmare individual performance on a high-profile sporting stage. — Eduardo Tansley, New York Times, 12 Mar. 2026 See All Example Sentences for nightmare

Recent Examples of Synonyms for nightmare

Noun

The minutes had passed so quickly for the rest of the world, but for the families waiting to learn whether their children were alive, the abrupt end of the gunfire wasn’t the end of their agony.

— Alaa Elassar, CNN Money, 17 Oct. 2026
The daughters of burning witches were sometimes made to stand close to the pyre, being whipped by locals while watching their mothers die in agony.

— Literary Hub, Literary Hub, 14 Oct. 2026

Definition of agony

Adjective

There’s a slickness to the carnage that rubs uncomfortably against the film’s humanist ethos, rendering artificial (for all Shen Teng’s trembling and mouth-contorting labors) the horrific tragedies that befall its characters.

— Beatrice Loayza, Variety, 13 Oct. 2026
What happened to you was horrific, and there is nothing that any of us can say today that will make this any easier.

— Eric Mack, FOXNews.com, 12 Oct. 2026

Definition of horrific

Noun

Waiting for the Jets are the defending AFC champion Patriots and a stadium that has delivered far more misery than milestones.

— Antwan Staley, New York Daily News, 18 Oct. 2026
With Dunham as creator, showrunner and star, the original series followed a group of friends through the misery and dysfunction of their 20s in New York City.

— Selome Hailu, Variety, 13 Oct. 2026

Definition of misery

Adjective

Among protesters, particularly gruesome wounds suffered by some teenagers have been blamed on police riot-control weapons.

— ABC News, ABC News, 13 Oct. 2026
Mars Attacks, released in 1962, was a huge hit with kids, though many parents objected to the gruesome artwork of Martians eviscerating Earthlings.

— Bob Woods, CNBC, 10 Oct. 2026

Definition of gruesome

Noun

Her controlled world is turned into a site of emotional horror as a new reality dawns, created and dominated by autonomous feelings.

— Melanie Goodfellow, Deadline, 15 Oct. 2026
But while Cartman and Ike are in Sephora, they get enticed into going into the backrooms with an employee, which look straight out of Kane Parsons’ horror film.

— Payton Turkeltaub, Variety, 15 Oct. 2026

Definition of horror

Adjective

The series is notorious for its shocking plot twists (many of which bring dramatic, fatal ends to important characters).

— Brendan Le, PEOPLE, 15 Oct. 2026
Bajaria is said to have attended the town hall that Head of Scripted, UCAN Jinny Howe held Wednesday afternoon amid the layoffs, making her exit today feel abrupt and shocking to staffers.

— Nellie Andreeva, Deadline, 15 Oct. 2026

Definition of shocking

Noun

The Spanish government is investigating accusations detailed in an Amnesty International report of mistreatment and torture by Spanish soldiers.

— JOSEPH WILSON, Arkansas Online, 14 Oct. 2026
Pike was convicted of first degree murder and conspiracy to commit first degree murder in 1996 for the 1995 torture and murder of 19-year-old Colleen Slemmer.

— Robert McGreevy, FOXNews.com, 13 Oct. 2026

Definition of torture

Adjective

There’s a big data center that just came to my community not long ago and their community engagement was horrible, absolutely horrible.

— Dustin DeSoto, Vox, 16 Oct. 2026
After the third day of squirting an experimental drug up his nose, Dylan Meetze felt horrible.

— Amy Maxmen, Miami Herald, 15 Oct. 2026

Definition of horrible

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nightly

nightmare

nightmares

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“Nightmare.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nightmare. Accessed 20 Oct. 2026.

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Synonyms of nightmare

noun

adjective

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