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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
  • Stay vigilant by monitoring the sky for ominous signs and listening for the telltale sound of thunder.
    Bay Area Weather Report, Mercury News, 10 Sep. 2025
  • Headlines about Social Security are equally ominous.
    Ryan Ermey, CNBC, 9 Sep. 2025
Adjective
  • Whatever, Dever quickly recanted her earlier precise testimony to the FBI about the sinister doings by those two dodgy cops behind Karen Read’s SUV.
    Howie Carr, Boston Herald, 13 Sep. 2025
  • The Haunted Carwash was the sinister concoction of spooky enthusiasts Long Vo and Veronica Young of Huntington Beach.
    Charlie Vargas, Oc Register, 12 Sep. 2025
Adjective
  • For years, those on the radical left have compared wonderful Americans like Charlie to Nazis and the world’s worst mass murderers and criminals.
    Chad de Guzman, Time, 11 Sep. 2025
  • Stargazing is a wonderful pursuit that appeals to both the casual and dedicated observer, but views outside of cities are often much clearer and brighter thanks to different levels of light pollution.
    Harry Bennett, Space.com, 11 Sep. 2025
Adjective
  • For instance, instead of the menacing roars popularized by Jurassic Park, the instruments often produce gentler conversation sounds, suggesting a social, communicative side to these animals.
    Rupendra Brahambhatt, Interesting Engineering, 14 Sep. 2025
  • From there, the story is too exciting to reveal, except to say that someone presumed dead makes a menacing appearance.
    Mary Ann Grossmann, Twin Cities, 14 Sep. 2025
Adjective
  • Then, travelers settle on the ship for eight days to visit communities along the Ganges River, such as Matiari, a village known for its brass artisans, and Kalna, home to the astonishing Rajbari temple complex.
    Bailey Berg, AFAR Media, 9 Sep. 2025
  • An organic feel, curves, an astonishing representation of the body, a totally improbable position, even for Picasso.
    Natasha Gural, Forbes.com, 9 Sep. 2025
Adjective
  • Bradley McCroskey caught a miraculous 26-yard touchdown pass on the final play of regulation, then Temi Ericson raced nearly untouched for a 25-yard TD in overtime to give the Indians a 34-28 victory.
    Jordan Neal, Fort Worth Star-Telegram, 13 Sep. 2025
  • Every bite elicits wonder, provoking a quiet moment of gratitude for this lush, miraculous habitat.
    The Bon Appétit Staff, Bon Appetit Magazine, 12 Sep. 2025
Adjective
  • Malleable and with a matte finish, when worked through the hair, this white paste keeps flyaways at bay, musses up the ends of short cuts, and sculpts amazing second-day texture.
    Sophia Panych, Allure, 16 Sep. 2025
  • Those guys just haulin' butt around on there will be pretty amazing to see.
    Saajan Jogia, MSNBC Newsweek, 16 Sep. 2025
Adjective
  • The position of elementary education among the least susceptible to poverty might be surprising, but elementary school teachers are scarce and in demand.
    Erik Sherman, Forbes.com, 17 Sep. 2025
  • The stars are out at New York Fashion Week – including some surprising additions to the front row.
    Anika Reed, USA Today, 16 Sep. 2025

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Cite this Entry

“Portentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/portentous. Accessed 17 Sep. 2025.

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