nightmarish

adjective

Definition of nightmarishnext
as in gruesome
extremely disturbing or repellent a photographic exhibit of nightmarish images from the wars of the 20th century

Synonyms & Similar Words

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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 nightmarish The idea sounded at once mystical, therapeutic, and nightmarish. — Sebastian Smee, The Atlantic, 28 Aug. 2026 Minnesota’s Drake Lindsey has first-round potential; LaNorris Sellers had a nightmarish season in which the Gamecocks’ line surrendered 43 sacks but is one of the game’s most exciting players. — Scott Dochterman, New York Times, 23 Aug. 2026 What nightmarish scenarios would these two characters be facing? — Merrill Markoe, Deadline, 21 Aug. 2026 But the nightmarish realms of the Further retain their unnerving power, and some of the old-school ghost movie thrills are well done. — Bilge Ebiri, Vulture, 21 Aug. 2026 Production should improve from Lagway’s nightmarish SEC-leading 14 interceptions. — Noah White, Miami Herald, 18 Aug. 2026 The group’s predictions are nightmarish and agonizing to even contemplate. — Kevin Holden Platt, Forbes.com, 16 Aug. 2026 Directed by Mamoru Oshii, the film is a visionary epic that presents a surprisingly nightmarish vision of the future. — Declan Gallagher, Entertainment Weekly, 7 Aug. 2026 The club made the move following a nightmarish stretch in which the three-time All-Star could never seem to get on track. — ABC News, 5 Aug. 2026
Recent Examples of Synonyms for nightmarish
  1. gruesome
  2. horrific
  3. nightmare
  4. shocking
  5. horrible
  6. terrible
  7. frightening
  8. horrifying
Adjective
  • In 1987, the United Klans of America was ordered to pay $7 million for the gruesome 1981 murder of Michael Donald, a Black teenager whose body was found hanging from a tree in Mobile, Alabama.
    — Alaa Elassar, CNN Money, 25 Aug. 2026
  • Her credits include Obi-Wan, Rebel Moon and The Orville, as well as the gruesome culinary creations of Grotesquerie and drinkable blood for American Horror Story.
    — Erik Pedersen, Deadline, 25 Aug. 2026
Definition of gruesome
Adjective
  • The chilling new detail about Jesus Acosta’s horrific spree was revealed at the 31-year-old ex-con’s arraignment in Bronx Criminal Court late Sunday, where he was ordered held without bail for the two cold-blooded shootings.
    — John Annese, New York Daily News, 31 Aug. 2026
  • Then there is the horrific crash on the McHenry County side of the Fox River, where on July 25 Alan Telmini and Magdalena Jablonska, both from Des Plaines, were cruising the river south of the McHenry Dam.
    — Charles Selle, Chicago Tribune, 31 Aug. 2026
Definition of horrific
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
Definition of nightmare
Adjective
  • In front of adoring fans in Shanghai, the UFC veteran and perennial contender in the UFC bantamweight division scored a shocking upset win over Umar Nurmagomedov in the main event on Saturday.
    — Brian Mazique, Forbes.com, 29 Aug. 2026
  • The August nonfarm payrolls report that releases Friday will be coming off a low set of expectations, given the shocking loss of jobs in July.
    — Sarah Min, CNBC, 28 Aug. 2026
Definition of shocking
Adjective
  • Anne Hathaway is a leftist, woke, horrible choice for DAYS OF THUNDER NASCAR audience who are MAGA.
    — James Hibberd, HollywoodReporter, 31 Aug. 2026
  • These two rubber bands in our throat are affected by everything from hormones to psychology to a bad day to a horrible night’s sleep to the sniffles or whatever.
    — Marissa R. Moss, Rolling Stone, 28 Aug. 2026
Definition of horrible
Adjective
  • But even without it, there seems to be some truth to the idea that if these teams were terrible businesses, they wouldn’t be sold for billions of dollars.
    — Evan Drellich, New York Times, 26 Aug. 2026
  • Not by tightening the siege on Iran directly, but by tightening the siege on those who help this regime, this terrible dictatorship.
    — Mustafa Qadri, CNN Money, 26 Aug. 2026
Definition of terrible
Adjective
  • The thoughts that accompany these conditions can be alarming and frightening, making many women reluctant to talk about them or seek help.
    — Helen Carefoot, Flow Space, 28 Aug. 2026
  • There are frightening stories of swordfish charging boats, and even spearing their transoms and whacking propellers.
    — Bob McNally, Outdoor Life, 26 Aug. 2026
Definition of frightening
Adjective
  • Finding a place where the familiar and the horrifying meet has always been a sweet spot for Kelly.
    — Alison Willmore, Vulture, 28 Aug. 2026
  • IndieWire exclusively releases the video, which sees the two directors discussing everything from post-production workflows to the horrifying experience of being a young person in a world that often feels brutally unstable.
    — Christian Zilko, IndieWire, 28 Aug. 2026
Definition of horrifying

Browse Nearby Words

nightmares
nightmarish
night owl
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Cite this Entry

“Nightmarish.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nightmarish. Accessed 2 Sep. 2026.

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