as in sure
having or showing a mind free from doubt
another one of his doubtless predictions that will never come true
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
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
Bill Goodykoontz, The Arizona Republic, 29 Nov. 2022
In the tradition of superpower summits, Biden and Xi doubtless hope to declare their meeting a success — if only by the hard-to-measure standard of stabilizing U.S.-China relations.
—Doyle McManuswashington Columnist, Los Angeles Times, 13 Nov. 2022
Bryan Hendricks, Arkansas Online, 15 Feb. 2026
Drescher has doubtless heard the same from time to time.
—Dessi Gomez, Deadline, 11 Jan. 2026
See All Example Sentences for doubtless
Adjective
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
In the tradition of superpower summits, Biden and Xi doubtless hope to declare their meeting a success — if only by the hard-to-measure standard of stabilizing U.S.-China relations.
—Doyle McManuswashington Columnist, Los Angeles Times, 13 Nov. 2022
Adverb
Even during the regular waterfowl seasons, hunters have doubtless seen a lone snow goose or white-fronted goose alone in a field.
—Bryan Hendricks, Arkansas Online, 15 Feb. 2026
Drescher has doubtless heard the same from time to time.
—Dessi Gomez, Deadline, 11 Jan. 2026
See All Example Sentences for doubtless
Recent Examples of Synonyms for doubtless
Adjective
-
Be sure to leave some time for customs in San José—during peak travel times, the line can be over an hour long.—
Condé Nast,
Condé Nast Traveler,
12 June 2026
-
Be sure to check out Bee reporter Veronica Fernandez-Alvarado’s newcomer’s guide to Sacramento’s LGBTQ bars, churches, drag shows and more.—
Sean Timberlake,
Sacbee.com,
12 June 2026
Adverb
-
The better offense is almost certainly the Diamondbacks, but the better pitcher is on the Reds side.—
David Troy OutKick,
FOXNews.com,
14 June 2026
-
Swift has certainly had a busy week.—
Meg Walters,
InStyle,
14 June 2026
Adverb
-
That’s probably the biggest takeaway from Thursday’s interaction.—
Nick Harris
June 11,
Fort Worth Star-Telegram,
12 June 2026
-
Sudden cuts tend to backfire, leaving you with the very symptoms fatigue, headaches, irritability that probably sent you reaching for caffeine in the first place.—
Samantha Agate,
Kansas City Star,
12 June 2026
Adjective
-
Rangel, who was 10 years old when Mexico tied South Africa in the opening match of the 2010 World Cup and who fondly remembers El Tri’s victory over France that tournament, is confident between the posts.—
Eduard Cauich,
Los Angeles Times,
11 June 2026
-
Schaeffer, however, is confident that change is on the way.—
Patrick Saunders,
Denver Post,
11 June 2026
Adverb
-
If the title of this documentary isn't enough to sell you on it, the highly entertaining story therein surely will.—
Katie Rife,
Entertainment Weekly,
13 June 2026
-
This summer brings so much focus on a generation of legendary players who will surely be making their final appearances on the world stage.—
Oliver Kay,
New York Times,
13 June 2026
Adverb
-
County officials have said additional budget cuts will likely be necessary in the coming years.—
Daniel Lempres,
Sacbee.com,
13 June 2026
-
While Pochettino said the substitution was purely precautionary, American fans will likely remain uneasy until Pulisic is back on the field and fully healthy.—
Matt Reigle,
FOXNews.com,
13 June 2026
Adjective
-
But now the western Canadian province, where the popular HBO drama The Last of Us was shot during its first season, is more assured foreign movie or TV series will tap its film tax credit while shooting locally as royalties from oil exploration and drilling once again pour into its coffers.—
Etan Vlessing,
HollywoodReporter,
12 June 2026
-
But Richard Bowden, division head of assured and resilient PNT at the multinational technology company GMV in Spain, shared a different theory with Veritasium about how the interference bursts may actually represent short communication messages being sent from Russian satellites.—
Jeremy Hsu,
ArsTechnica,
8 June 2026
Adverb
-
That means no more security updates, patches, or tech support, so now’s definitely the time to finally upgrade.—
StackCommerce Team,
PC Magazine,
12 June 2026
-
What’s definitely cool is the fact that the monocoque frame, swingarm, fork, and rims are all made entirely of carbon fiber.—
Utkarsh Sood
June 12,
New Atlas,
12 June 2026
Cite this Entry
“Doubtless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/doubtless. Accessed 17 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
