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
Doyle McManuswashington Columnist, Los Angeles Times, 13 Nov. 2022
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
Adam Gopnik, New Yorker, 8 Dec. 2025
This approach is doubtless crude.
—Ray Takeyh, Foreign Affairs, 4 Dec. 2025
See All Example Sentences for doubtless
Adjective
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
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
Adverb
Some prisoners were doubtless guilty of some offense; others were simply unlucky in birth or circumstance.
—Adam Gopnik, New Yorker, 8 Dec. 2025
This approach is doubtless crude.
—Ray Takeyh, Foreign Affairs, 4 Dec. 2025
See All Example Sentences for doubtless
Recent Examples of Synonyms for doubtless
Adjective
-
The fans are sure to clock in for its extra nuggets of lore, but there are few reasons for a non-Slimehead to take the plunge.—
Beatrice Loayza,
Variety,
1 May 2026
-
Holland's not quite sure why so many in his generation are avoiding alcohol.—
Charles Trepany,
USA Today,
1 May 2026
Adverb
-
Senior catcher Owen Weber was certainly impressed for Lincoln-Way West.—
Steve Millar,
Chicago Tribune,
27 Apr. 2026
-
The Timberwolves can certainly relate.—
Sam Amick,
New York Times,
27 Apr. 2026
Adverb
-
At this year's event, held at Pura Padel, Holland participated with other BERO higher-ups in a friendly tournament of padel, a racquet sport that's probably best described as a combination of squash and tennis.—
Charles Trepany,
USA Today,
1 May 2026
-
Voters will probably be bombarded with political ads and arguments from opposing sides as the battle intensifies.—
Queenie Wong,
Los Angeles Times,
30 Apr. 2026
Adjective
-
Bader felt confident in creating a collection that would cater to Show Me Your Mumu's shoppers as well as her followers.—
Hedy Phillips,
PEOPLE,
30 Apr. 2026
-
Just being more confident in my choice of what is funny and what’s not.—
Los Angeles Times,
Los Angeles Times,
30 Apr. 2026
Adverb
-
The club’s victorious April surely has the attention of a duo with deep pockets.—
Dennis Lin,
New York Times,
27 Apr. 2026
-
Prying him away from the desert would surely take a massive offer, and Diamondbacks boss Mike Hazen likely wouldn’t bite unless Mayer was included in the deal, or if not him then one or more of the club’s top young pitchers.—
Mac Cerullo,
Boston Herald,
26 Apr. 2026
Adverb
-
Parsons had 12½ sacks in 14 games last year before suffering a torn anterior cruciate ligament, an injury that ended his 2025 season prematurely and likely will prevent him from being available for the start of the next season.—
Steve Megargee,
Chicago Tribune,
25 Apr. 2026
-
Casey was a left tackle at Boise State and chose to give up his final year of college eligibility to pursue the NFL, where teams likely view him as a guard.—
Zac Jackson,
New York Times,
25 Apr. 2026
Adjective
-
Ramaswamy feels so assured of gliding through the May 5 primary that his campaign has all but ignored his GOP opponent so far.—
ABC News,
ABC News,
26 Apr. 2026
-
City were only two points off the top, but Arsenal had looked more assured.—
Sam Lee,
New York Times,
23 Apr. 2026
Adverb
-
That definitely was not on our agenda for some of our night.—
Pierre LeBrun,
New York Times,
25 Apr. 2026
-
Giveaways were definitely a popular draw to the expo as evidenced by the number of full sponsor bags many patrons carried around.—
Karie Angell Luc,
Chicago Tribune,
24 Apr. 2026
Cite this Entry
“Doubtless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/doubtless. Accessed 1 May. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
