Synonym Chooser

How does the adjective ominous differ from other similar words?

The words fateful and portentous are common synonyms of ominous. While all three words mean "having a menacing or threatening aspect," ominous implies having a menacing, alarming character foreshadowing evil or disaster.

ominous rumblings from the volcano

Where would fateful be a reasonable alternative to ominous?

The words fateful and ominous can be used in similar contexts, but fateful suggests being of momentous or decisive importance.

the fateful conference that led to war

When can portentous be used instead of ominous?

Although the words portentous and ominous have much in common, portentous suggests being frighteningly big or impressive but now seldom definitely connotes forewarning of calamity.

an eerie and portentous stillness

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 ominous Despite ominous skies and a little rain, more than 400 people attended the fifth edition of the Unplugged Festival at Paulus Park in Lake Zurich on Sunday. Gregory Harutunian, Chicago Tribune, 11 Aug. 2025 The responses ranged from cringe-worthy to legitimately ominous. Peter Tonguette, The Washington Examiner, 8 Aug. 2025 Enzo Maresca’s ominous words in his press conference at Cobham on Thursday left little room to avoid the conclusion that Colwill had suffered a significant injury. Liam Twomey, New York Times, 8 Aug. 2025 Things kick off on an ominous note as 11-year-old Polly (Ana Sophia Heger) continues to wait for her mom to pick her up at school long after her classmates and teachers have departed. Joe Leydon, Variety, 1 Aug. 2025 See All Example Sentences for ominous
Recent Examples of Synonyms for ominous
Adjective
  • For The Fin, his team worked to make the dim light extra grainy, giving it a particularly sinister quality.
    Georg Szalai, HollywoodReporter, 7 Aug. 2025
  • This turns out to be another name for Galactus, a surprisingly scary Marvel villain played with sinister sincerity by Ralph Ineson.
    Damon Wise, Deadline, 22 July 2025
Adjective
  • The youngest boy was charged with assault, while a 15-year-old boy was hit with assault, menacing and weapon possession charges after the victim was stabbed in the armpit and abdomen in Maria Hernandez Park near Starr St. and Irving Ave.
    Kerry Burke, New York Daily News, 21 Aug. 2025
  • That’s the menacing question the political classes have been whispering all summer.
    Laura Washington, Chicago Tribune, 20 Aug. 2025
Adjective
  • Directed by Paul Schrader with a script by Bret Easton Ellis, this spiritually bleak L.A. drama features Lohan’s most daring performance, and probably the only one that manages to break completely with her childhood and adolescent roles.
    Tom Gliatto, People.com, 9 Aug. 2025
  • The situation is bleak enough that, even if aid increases rapidly in the coming weeks, deaths from starvation are almost certain to rise.
    Isaac Chotiner, New Yorker, 5 Aug. 2025

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Cite this Entry

“Ominous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ominous. Accessed 24 Aug. 2025.

More from Merriam-Webster on ominous

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