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
Daniel De Visé, SPIN, 13 Sep. 2022
Emerging-market currencies are doubtless in for another several months of rollercoaster-like volatility, even assuming that the Fed’s currently uber-hawkish stance starts to soften a bit.
—Megha Mandavia, WSJ, 2 Sep. 2022
New Atlas, 22 Sep. 2025
Add in the doubtless significant number of people under 18 using ChatGPT (who weren't included in the sample at all), and a decent majority of OpenAI's users probably aren't old enough to remember the 20th century firsthand.
—ArsTechnica, 15 Sep. 2025
See All Example Sentences for doubtless
Adjective
Like Shannon, Natalie followed a circuitous musical path, dabbling in noise rock and once fronting a band called Satanized, doubtless to the delight of her Pentecostal parents.
—Daniel De Visé, SPIN, 13 Sep. 2022
Emerging-market currencies are doubtless in for another several months of rollercoaster-like volatility, even assuming that the Fed’s currently uber-hawkish stance starts to soften a bit.
—Megha Mandavia, WSJ, 2 Sep. 2022
Adverb
Dual-band Wi-Fi has been cooked in too, doubtless catering for sharing notes, backing up ideas, making sure your secretary is kept up to date on your comings and goings, and so on.
—New Atlas, 22 Sep. 2025
Add in the doubtless significant number of people under 18 using ChatGPT (who weren't included in the sample at all), and a decent majority of OpenAI's users probably aren't old enough to remember the 20th century firsthand.
—ArsTechnica, 15 Sep. 2025
See All Example Sentences for doubtless
Recent Examples of Synonyms for doubtless
Adjective
-
There was a world around Liverpool, sure, but there was a real community in the Village that was about more than just music.—
Andy Greene,
Rolling Stone,
27 Oct. 2025
-
Save as a collection on MyRecipes Not sure what to serve for dinner tonight?—
Sarah Martens,
Better Homes & Gardens,
27 Oct. 2025
Adverb
-
But, in his first game back from a knee sprain, Bichette certainly didn’t look comfortable doing it.—
Fabian Ardaya,
New York Times,
25 Oct. 2025
-
Kansas redshirt-sophomore guard Elmarko Jackson certainly showed Friday he’s recovered from patellar tendon surgery that forced him to redshirt the 2024-25 campaign.—
Gary Bedore,
Kansas City Star,
25 Oct. 2025
Adverb
-
Louisville would probably look quite different if the founder of Brown-Forman never became the first whiskey maker to bottle and seal his liquor.—
Maggie Menderski,
Louisville Courier Journal,
26 Oct. 2025
-
Sports betting is probably as old as sports itself.—
Preston Fore,
Fortune,
25 Oct. 2025
Adjective
-
Elegant, confident and eternally expressive, both make a stylish pair, effortlessly turning heads while basking in the adoration.—
Valerie Mesa,
PEOPLE,
29 Oct. 2025
-
Officials, though, are less confident that a trade agreement discussed in July will be finalized, as the countries remain deadlocked over the details of Seoul’s $350 billion investment pledge.—
Reed Albergotti,
semafor.com,
29 Oct. 2025
Adverb
-
That news surely will boost ticket sales for the under-construction Miami Freedom Park Stadium, which is where the team will play home games starting in 2026.—
Michelle Kaufman,
Miami Herald,
29 Oct. 2025
-
While a dog can be bribed with a squeaky toy and a pig would surely look at the camera when enticed with a sausage on a stick, cats are known for their admirably self-serving demeanors.—
Desiree Anello,
PEOPLE,
29 Oct. 2025
Adverb
-
While historians long theorized that foul play may have played a role in the death of the ruler, more recent DNA analysis suggests that Tutankhamen likely died from a combination of malaria and a bone disorder, per Live Science.—
Toria Sheffield,
PEOPLE,
2 Nov. 2025
-
As the boundaries between global prestige and domestic performance blur, 2026 will likely see deeper integration between international fashion calendars and China’s digital economy.—
Li Jun,
Footwear News,
2 Nov. 2025
Adjective
-
With assured access to raw materials from friendly nations, American firms can focus on efficient extraction, ethical mining and value-added processing, said Sutherland.—
Anniek Bao,
CNBC,
29 Oct. 2025
-
Only three years have passed since then, but at 41, with the Chanel diadem upon him, Blazy carries a more assured and weathered air.—
Nathan Heller,
Vogue,
14 Oct. 2025
Adverb
-
There’s definitely a gap between lab-idea companies to when companies have serious momentum to be getting some pre-seed or angel funding.—
Jasmin Malik Chua,
Sourcing Journal,
31 Oct. 2025
-
Lokedi said the footwear definitely delivered during her Boston Marathon run.—
Vicki M. Young,
Footwear News,
31 Oct. 2025
Cite this Entry
“Doubtless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/doubtless. Accessed 3 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share