1
2

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
  • If the sky turns ominous and thunder can be heard, find a secure place for shelter.
    CA Weather Bot, Sacbee.com, 24 Sep. 2025
  • As the ominous clip made its way across social media platforms, many users on TikTok shared various reactions to the religious message.
    DeMicia Inman, VIBE.com, 22 Sep. 2025
Adjective
  • Football season has arrived, and so has a new horror movie produced by Jordan Peele that delves into the sinister side of the game.
    Neda Ulaby, NPR, 19 Sep. 2025
  • Amelia Gray Hamlin Amelia Gray Hamlin partnered her black lace get-up with a sinister makeup look involving misty gray shadow.
    Kaleigh Werner, Footwear News, 19 Sep. 2025
Adjective
  • Watching his wonderful kids, Amy, Jamie and Shauna, grow up and become deeply connected to the arts and making an impact in this world has been an immense privilege.
    Michelle Satter, Time, 26 Sep. 2025
  • Accessible by car or Amtrak’s Northeast Regional line, which offers thrice-daily service, Culpeper is a wonderful destination for a leisurely and enriching getaway.
    Erin Gifford, Southern Living, 25 Sep. 2025
Adjective
  • Cue Pennywise's menacing laughter and our first glimpse of the killer clown behind his signature red balloon.
    Jennifer Ouellette, ArsTechnica, 23 Sep. 2025
  • Come night, the lawn proves more menacing.
    Karl Schneider, IndyStar, 22 Sep. 2025
Adjective
  • The astonishing diversity among plumeria seedlings coming from the same pod is attributable to the large number of chromosomes in each plumeria cell, which is 54.
    Joshua Siskin, Oc Register, 20 Sep. 2025
  • MicroStrategy remains the leader among corporate crypto treasuries, holding over 638,000 bitcoins valued at an astonishing $71 billion.
    Trefis Team, Forbes.com, 19 Sep. 2025
Adjective
  • After leading his team to a miraculous win over Hanover last week on the final play, Varholak still had some last-minute magic left in the tank.
    Brendan Connelly, Boston Herald, 20 Sep. 2025
  • Meanwhile, in a remote leper village, a handsome stranger brings hope with miraculous cures until doubts grow about whether his help may come at a terrible cost.
    Liz Shackleton, Deadline, 19 Sep. 2025
Adjective
  • The aluminum body is slim and light but still feels sturdy, and the OLED screen makes movies and presentations look amazing anywhere.
    Shubham Yewale, PC Magazine, 23 Sep. 2025
  • Many are amazing kids who’ve just been through terrible things and had no control over any of it.
    Kansas City Star, Kansas City Star, 23 Sep. 2025
Adjective
  • No player had a more surprising individual season than outfielder Trent Grisham, whom the San Diego Padres included in the Soto trade two offseasons ago.
    Chris Kirschner, New York Times, 24 Sep. 2025
  • In a surprising moment, Kimmel thanked Senator Ted Cruz for defending his reinstatement.
    Amanda Castro, MSNBC Newsweek, 24 Sep. 2025

Browse Nearby Words

Podcast

Cite this Entry

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

More from Merriam-Webster on portentous

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!