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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 Another is about death itself and the portentous ride to the other side. Sezin Devi Keohler, EW.com, 29 Mar. 2025 Other portentous allegories ensue. Namwali Serpell, The New Yorker, 8 Mar. 2025 This game would have been twice as portentous if Davis had been healthy, but the 10-time All-Star who teamed up with James to lead the Lakers to the 2020 championship is out at least two more weeks with a groin injury sustained in his Mavs debut. Greg Beacham, Chicago Tribune, 26 Feb. 2025 In the 1990s, public policy, now in the form of environmental policy, reemerged as the impetus for perhaps the most portentous chapter of lithium power. IEEE Spectrum, 11 Oct. 2019 See All Example Sentences for portentous
Recent Examples of Synonyms for portentous
Adjective
  • Several stories account for the ominous name of the stark, forbidding mountains.
    Literary Hub, Literary Hub, 22 Oct. 2025
  • If the sky turns ominous and thunder can be heard, find a secure place for shelter.
    CA Weather Bot, Sacbee.com, 22 Oct. 2025
Adjective
  • Their double life soon gets complicated when a rival boy band harboring a sinister secret begins stealing their fans.
    Ingrid Vasquez, PEOPLE, 25 Oct. 2025
  • Candyman, the Candyman franchise (1992–1999; 2021) Helen Lyle (Virginia Madsen) finds out that adoration and horror don't mix when she is faced with the attachment of the sinister Candyman (Tony Todd) in the 1992 film classic.
    Steven Thrash, Entertainment Weekly, 24 Oct. 2025
Adjective
  • For the creation of wonderful characters and a story that feels spontaneous yet precise in its depiction of power, its moral dilemmas, and the absurd contradictions with the human condition.
    Christian Blauvelt, IndieWire, 24 Oct. 2025
  • Walston had a wonderful calming spirit.
    Cameron Crowe, HollywoodReporter, 24 Oct. 2025
Adjective
  • For bones, spirits, and some menacing dolls, here’s where to go for a fright.
    Sophie Friedman, AFAR Media, 22 Oct. 2025
  • But an uninspired and shallow story – which includes a rape scene demanded by the studio – hampers his attempts to entice us with a chilling and menacing tone.
    Rory Doherty, Vulture, 20 Oct. 2025
Adjective
  • Everything about it pleases me, from the correctness of all the enclitic marks upward, to the astonishing lambency of the whole.
    Literary Hub, Literary Hub, 21 Oct. 2025
  • The astonishing young actor known as Master Betty was the prototype of the species.
    Adam Gopnik, New Yorker, 20 Oct. 2025
Adjective
  • The bad feelings flared up moments after Payton's Broncos pulled off a miraculous rally on Sunday, beating New York 33-32 in a game that Denver trailed by 18 with six minutes left.
    David K. Li, NBC news, 22 Oct. 2025
  • Since defeating the Kansas City Chiefs, Las Vegas Raiders and Denver Broncos and raising expectations around the NFL, the Chargers have been on a less-than-stellar stretch in which their only victory in their past four games was a miraculous, last-minute win over the struggling Miami Dolphins.
    Elliott Teaford, Oc Register, 22 Oct. 2025
Adjective
  • Dan Aykroyd's amazing cameo as the iconic Ray Stantz from Ghostbusters is a treat to watch.
    Lisa Stardust, PEOPLE, 21 Oct. 2025
  • This isn’t the first time a homeowner has shared an amazing discovery during a renovation.
    Alice Gibbs, MSNBC Newsweek, 21 Oct. 2025
Adjective
  • What’s more surprising is that a tiny amount of activity could have a noticeable effect, according to a study published Tuesday in the British Journal of Sports Medicine that included more than 13,000 women with an average age of 72.
    Veronique Greenwood, Time, 21 Oct. 2025
  • The impact on their relationship hasn’t been dramatic, but the emotional response from strangers has been surprising.
    Ashley Vega, PEOPLE, 21 Oct. 2025

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Cite this Entry

“Portentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/portentous. Accessed 28 Oct. 2025.

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