formidable

adjective

ˈfȯr-mə-də-bəl How to pronounce formidable (audio)
Definition of formidablenext
1
as in terrifying
causing fear a formidable, irascible old man who frightened the neighborhood children

Synonyms & Similar Words

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Antonyms & Near Antonyms
2
as in difficult
requiring considerable physical or mental effort running a marathon is a formidable undertaking

Synonyms & Similar Words

Antonyms & Near Antonyms

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 formidable Direct-to-Consumer Pete Distad, CEO of FOX Direct-to-Consumer, has built a strong team and has developed, launched, and grown FOX One into a formidable consumer offering. — Alex Weprin, HollywoodReporter, 6 Nov. 2026 And then there’s the townsfolk, who may not always be as colorful as the woman demanding free water, but who share her fair yet formidable spirit. — Ben Travers, IndieWire, 5 Nov. 2026 This turned out to be a formidable weapon for Democrats, many of whom made energy costs central to their campaigns. — Los Angeles Times, 5 Nov. 2026 Sewell will be a tough matchup for Uche to win straight up, and Miller has been formidable at right tackle, making for a solid battle against Robinson. — David Furones, Sun Sentinel, 5 Nov. 2026 See All Example Sentences for formidable
Recent Examples of Synonyms for formidable
  1. terrifying
  2. difficult
  3. frightening
  4. challenging
  5. scary
  6. tough
  7. terrible
  8. rigorous
Adjective
  • The blistering one-way run is strangely terrifying from the near silent cockpit as the highway lamps flash past.
    — New Atlas, New Atlas, 11 Nov. 2026
  • In Lima, and especially in the regions, terrifying scenes unfolded outside hospitals, with sick people collapsing in the street due to the shortage of oxygen, one of the key tools for treating the virus.
    — Claudia Rebaza, CNN Money, 11 Nov. 2026
Definition of terrifying
Adjective
  • The pilot must compensate manually using the controller, which can be difficult if the aircraft is far away or difficult to see.
    — Kaif Shaikh, Interesting Engineering, 8 Nov. 2026
  • The chocolatey all-suede style was first released in October 2023 and has become increasingly difficult to track down over the years, with certain sizes commanding premium prices on the secondary market.
    — Riley Jones, Footwear News, 7 Nov. 2026
Definition of difficult
Adjective
  • The frightening part is that almost anyone can end up on the wrong side of these systems.
    — Edward Longe, Washington Post, 2 Nov. 2026
  • Sussman remembers the 1999 Glastonbury Festival as both frightening and unforgettable.
    — Maribeth Romslo, Rolling Stone, 1 Nov. 2026
Definition of frightening
Adjective
  • Manufacturing electronic devices from it remains difficult, particularly because reliably controlling its electrical properties through doping is challenging.
    — Kaif Shaikh, Interesting Engineering, 7 Nov. 2026
  • Porter knew Friday’s game would be a challenging one against the Tillers.
    — Steve Fryer, Oc Register, 7 Nov. 2026
Definition of challenging
Adjective
  • Detroit has a top-10 rushing defense, although that defense will be without middle linebacker Jack Campbell after a scary neck injury last week.
    — David Furones, Sun Sentinel, 7 Nov. 2026
  • Thursday’s stock sell-off looked scary — but some Wall Street analysts believe the dramatic decline might be just what the stock market needed after a monthslong run-up sent shares to dizzying heights.
    — Rob Wile, NBC news, 5 Nov. 2026
Definition of scary
Adjective
  • The Heat now returns home, but the competition is about to get tougher.
    — Anthony Chiang, Miami Herald, 11 Nov. 2026
  • Councilwoman Willis has been a tough negotiator, challenging us to work with the City of Dallas transportation department to identify and fund meaningful traffic enhancements.
    — CBS News, CBS News, 10 Nov. 2026
Definition of tough
Adjective
  • The bat lay on its back, soggy and wretched, here in the waning hours of this terrible day.
    — Téa Obreht, New Yorker, 1 Nov. 2026
  • An ugly fight between teammates during training camp was a terrible start to a season that officially began with a loss against North Carolina, a game in Dublin that TCU essentially sold, against the desires of Dykes.
    — Fort Worth Star-Telegram, Fort Worth Star-Telegram, 1 Nov. 2026
Definition of terrible
Adjective
  • Success Academy Westland Hialeah Elementary is one of the first five schools of the nonprofit charter operator, known for its high test scores and rigorous culture, to co-locate inside Miami-Dade public schools.
    — Miami Herald, Miami Herald, 12 Nov. 2026
  • That history demands rigorous safeguards for any outside organization working with children, including comprehensive vetting, clear boundaries, close supervision and independent accountability.
    — The Editorial Board, Chicago Tribune, 11 Nov. 2026
Definition of rigorous

Browse Nearby Words

formidability
formidable
forming
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Cite this Entry

“Formidable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/formidable. Accessed 12 Nov. 2026.

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