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
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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
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Cruz, who also gave up an RBI single to Anthony Seigler and a game-tying sac fly to Tsung-Che Cheng, made sure to take responsibility for his part in the loss.
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Update your emergency kit and be sure to include enough food and water to last for 3 days for each person in your home.
Adverb
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Sometimes, were stymied because the conduct is based, the servers are based, outside of certainly Manhattan, but in many instances outside the United States.
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The fact that my son and his girlfriend live in Kansas City certainly helped spark our newfound fascination.
Adverb
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The long-term health effects of the fire and its smoke probably won’t be known unless researchers conduct a follow-up study, said Eisenman of UCLA.
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Chan says the trend probably isn't for daters who have a problem overworking in their relationships.
Adjective
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Ship traffic first started to pick up over the weekend as shipping companies became more confident that talks between the US and Iran were progressing.
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Merlin, a 2-year-old duck, has taken the internet by storm, captivating fans with his tiny form-fitting Team Mexico jersey and confident waddle around his home of Mexico City.
Adverb
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Colombia held Ronaldo in check all night Saturday, surely disappointing his legion of fans.
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That amount of splitting will surely present those three host nations with similar situations to the one Canada is facing now.
Adverb
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Gansey will likely look to address the backcourt and wing positions in his next moves as NBA free agency continues.
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After reviewing the security footage, McCurnin noticed the suspect appeared to be traveling on an electric scooter and believed the person likely lived nearby.
Adjective
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Streeting is an assured communicator with a base of support among parliamentary colleagues, but Burnham is considered the more likely successor.
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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.
Adverb
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But the New York Knicks captain and MVP definitely returned the favor in a big way.
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So the two of you are definitely not hanging up the hat after this?
Cite this Entry
“Doubtless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/doubtless. Accessed 3 Jul. 2026.
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