Definition of portentousnext
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Synonym Chooser

How does the adjective portentous differ from other similar words?

The words fateful and ominous are common synonyms of portentous. While all three words mean "having a menacing or threatening aspect," portentous suggests being frighteningly big or impressive but now seldom definitely connotes forewarning of calamity.

an eerie and portentous stillness

When is it sensible to use fateful instead of portentous?

In some situations, the words fateful and portentous are roughly equivalent. However, fateful suggests being of momentous or decisive importance.

the fateful conference that led to war

When can ominous be used instead of portentous?

The words ominous and portentous are synonyms, but do differ in nuance. Specifically, ominous implies having a menacing, alarming character foreshadowing evil or disaster.

ominous rumblings from the volcano

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 portentous Some of the big portentous moments are underscored with heavy soundtrack music composed by Billy Bivona. Christopher Arnott, Hartford Courant, 21 Feb. 2026 Yet signs of a portentous ideological shift started to appear almost a quarter century ago, after 9/11. Jason Blakely, Harpers Magazine, 30 Dec. 2025 Much like the film lingers on the cold northern landscape, Obomsawin’s music is laced with portentous silences and unresolved harmonies. Andrew Gilbert, Mercury News, 6 Nov. 2025 Later, chugging string figures and portentous drones have the flavor of Danny Elfman and Hans Zimmer. Alex Ross, New Yorker, 6 Oct. 2025 See All Example Sentences for portentous
Recent Examples of Synonyms for portentous
Adjective
  • As the cave shakes and thunders, the scene gets more ominous.
    Megan duBois, Southern Living, 4 May 2026
  • Stay vigilant by monitoring the sky for ominous signs and listening for the telltale sound of thunder.
    Southern California Weather Report, Oc Register, 4 May 2026
Adjective
  • There is great teaching going on, the principal is wonderful.
    Fort Worth Star-Telegram, Fort Worth Star-Telegram, 28 Apr. 2026
  • Claire has been an advocate for courageous stories, an expert at complicated logistics and a wonderful partner to teams across the entire news division.
    Brian Steinberg, Variety, 27 Apr. 2026
Adjective
  • Upending age-old narrative traditions, Paul’s heroism takes a sinister turn when Herbert reveals that the Bene Gesserit, an Illuminati-like secretive order of psychic matriarchs, has long been conditioning the Fremen to expect the arrival of a messiah, or mahdi, in their native tongue.
    Big Think, Big Think, 29 Apr. 2026
  • This advertised butt jokes, campy fight montages and sinister Seth Rogen laughs.
    Clare Mulroy, USA Today, 28 Apr. 2026
Adjective
  • Head there for a quieter gape at the astonishing mortar-free construction.
    Helen Brown, TheWeek, 30 Apr. 2026
  • Overall, this is astonishing work.
    ArsTechnica, ArsTechnica, 30 Apr. 2026
Adjective
  • If the sky becomes menacing and thunder becomes audible, seek out a safe place to seek shelter.
    CA Weather Bot, Sacbee.com, 3 May 2026
  • Others take a more menacing tone, like a jaguar facing off with a dog in a snowy backyard.
    Lila Seidman, Los Angeles Times, 2 May 2026
Adjective
  • In my own haze of 'round-the-clock feeds and first-time-parent anxiety, my mom seemed something of a miraculous blur.
    Betsy Cribb Watson, Southern Living, 26 Apr. 2026
  • The Atlanta Hawks guard had just led a miraculous comeback in Game 2 of a first-round playoff series against the New York Knicks.
    Fred Katz, New York Times, 23 Apr. 2026
Adjective
  • To get a sentence like that in a communist, radically left-wing city of liberal lunatics is truly amazing.
    Voice of the People, New York Daily News, 29 Apr. 2026
  • The best was this amazing movie with Isabelle Huppert and Gerard Depardieu.
    Matt Donnelly, Variety, 29 Apr. 2026
Adjective
  • The troop withdrawal is hardly surprising, said Michał Matlak, a senior fellow at the European University Institute and director of the Institute for Innovation and Technology in Warsaw.
    Yuliya Talmazan, NBC news, 2 May 2026
  • One of the most pleasantly surprising things about visiting the Florida Keys is seeing how many attractions allow for four-legged visitors accompanying their humans.
    Patrick Connolly, The Orlando Sentinel, 2 May 2026

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Cite this Entry

“Portentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/portentous. Accessed 5 May. 2026.

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