doubtless 1 of 2

adjective

Definition of doubtlessnext
as in sure
having or showing a mind free from doubt another one of his doubtless predictions that will never come true

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Antonyms & Near Antonyms

doubtless

2 of 2

adverb

ˈdau̇t-ləs How to pronounce doubtless (audio)
1
as in certainly
without any question she is doubtless the one and only girl for me

Synonyms & Similar Words
2
as in probably
by reasonable assumption doubtless you have heard this story before, but I'll tell it anyway

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 doubtless
Adjective
Even moderately keen cornering produces body roll and would bring doubtless admonition from the rear seats. — Mike Duff, Car and Driver, 18 Aug. 2023 And the all-boffo, all-the-time production is exhausting (which is doubtless why the rare quiet moments stand out). — Bill Goodykoontz, The Arizona Republic, 29 Nov. 2022
Adverb
But the show’s creatives have been looking to deftly expand Rowling’s beloved source material and will doubtless find some fresh ways to elevate the story. — James Hibberd, HollywoodReporter, 6 May 2026 Savings here and there are doubtless feasible. — Editorial, Boston Herald, 17 Apr. 2026 See All Example Sentences for doubtless
Recent Examples of Synonyms for doubtless
  1. sure
  2. certainly
  3. probably
  4. confident
  5. surely
  6. likely
  7. assured
  8. definitely
Adjective
  • More options means more styling potential, sure, but also more confusion.
    — Anna Moeslein, Glamour, 3 Oct. 2026
  • Schlichter, like others, wasn’t sure where the two men had come from.
    — ABC News, ABC News, 3 Oct. 2026
Definition of sure
Adverb
  • Not that this strictly counts as stand-up comedy, but certainly a lot of it is in that sphere or involves those skills.
    — Chris Willman, Variety, 1 Oct. 2026
  • But even if Waldron’s disposition does not give off Master of the Universe vibes, his resumé certainly does.
    — Morgan Chittum, Fortune, 1 Oct. 2026
Definition of certainly
Adverb
  • Brower and Simone learned that pigeons were a common source of food for people thousands of years ago and used the sun, and probably the earth's magnetic field, for navigation.
    — KYLE MELNICK THE WASHINGTON POST, Arkansas Online, 4 Oct. 2026
  • Jack Wolf Westwood Lincoln Riley talks a big game about excelling in the Big Ten, but in losing badly to Oregon and its backup quarterback, USC probably couldn’t win the Pac-12 this year.
    — Los Angeles Times, Los Angeles Times, 3 Oct. 2026
Definition of probably
Adjective
  • And why do men feel more confident in their looks than women?
    — TheWeek, TheWeek, 2 Oct. 2026
  • The Chinese Communist Party is confident that its drug developers will have at least five blockbuster drugs by 2030.
    — STAT, STAT, 1 Oct. 2026
Definition of confident
Adverb
  • With Game 1 in the best-of-three Wild Card Series set to start Tuesday in Atlanta, the Phillies will almost surely have to beat the Braves without a start from Wheeler.
    — CBS News, CBS News, 28 Sep. 2026
  • Boston is likely to start two left-handers in the series, and the Yankees will surely want to deploy lefty-crushing outfielder Heliot Ramos in both games.
    — Gary Phillips, New York Daily News, 28 Sep. 2026
Definition of surely
Adverb
  • While those companies are not named in the Boulder case, they are named as defendants in similar climate lawsuits filed across the country, suits that very likely would be affected by the high court’s ruling.
    — Callie Patteson, The Washington Examiner, 1 Oct. 2026
  • Powers also has an employment contract that likely affords him protection and the chance to contest accusations before he is terminated for cause.
    — Michael McCann, Sportico.com, 30 Sep. 2026
Definition of likely
Adjective
  • Both policies share an emphasis on supporting the commercial space industry and underscore the importance of assured access to space.
    — Stephen Clark, ArsTechnica, 21 Aug. 2026
  • Playing some of the most assured tennis of his career, Brandon Nakashima slowed Rafael Jódar’s roll Wednesday at the Canadian Open in Montreal, beating the red-hot teenager 7-6(3), 6-4 to advance to the biggest final of his career.
    — Ava Wallace, New York Times, 13 Aug. 2026
Definition of assured
Adverb
  • As sure as the sun rises, Crohn’s disease is most definitely not juvenile idiopathic arthritis.
    — John Mildenberger, STAT, 2 Oct. 2026
  • Vicki and Tamra are meeting up to get their Prenuvo scans, and no, this is definitely not spon-con.
    — Louis Peitzman, Vulture, 2 Oct. 2026
Definition of definitely

Browse Nearby Words

doubting Thomases
doubtless
doubtlessness
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Cite this Entry

“Doubtless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/doubtless. Accessed 6 Oct. 2026.

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