1
as in volatile
likely to change frequently, suddenly, or unexpectedly
the stifling heat would occasionally be relieved by an uncertain breeze
Synonyms & Similar Words
Relevance
Antonyms & Near Antonyms
2
as in unsure
not feeling sure about the truth, wisdom, or trustworthiness of someone or something
never uncertain of her political beliefs or judgment, she was a decisive and fearless leader
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of uncertain
However, space weather forecasts remain uncertain.
—
Daisy Dobrijevic, Space.com, 4 June 2026
Albany lawmakers should lead on voting rights and election protection when many Americans feel uncertain about the future of democracy.
—Louie Sawi, New York Daily News, 4 June 2026
The second answer is a little more uncertain.
—Stephen Clark, ArsTechnica, 4 June 2026
Whether more Californians are ready to trade parking spaces for lower rents and walkable neighborhoods remains uncertain.
—Julia Prodis Sulek, Mercury News, 4 June 2026
See All Example Sentences for uncertain
Daisy Dobrijevic, Space.com, 4 June 2026
Albany lawmakers should lead on voting rights and election protection when many Americans feel uncertain about the future of democracy.
—Louie Sawi, New York Daily News, 4 June 2026
The second answer is a little more uncertain.
—Stephen Clark, ArsTechnica, 4 June 2026
Whether more Californians are ready to trade parking spaces for lower rents and walkable neighborhoods remains uncertain.
—Julia Prodis Sulek, Mercury News, 4 June 2026
See All Example Sentences for uncertain
Recent Examples of Synonyms for uncertain
Adjective
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Mario Tama | Getty Images Global stock markets remain volatile amid uncertainty in the Middle East and a focus on artificial intelligence stocks.—
TipRanks.com Staff,
CNBC,
7 June 2026
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But beyond this picturesque scene, there is a volatile combination of brutal rebel violence and a burgeoning Ebola outbreak.—
Gabrielle Emanuel,
NPR,
6 June 2026
Adjective
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When Arkansas implemented Medicaid work requirements in 2018, a Harvard survey found that more than 70% of affected residents remained unsure whether the policy was in place, even after the state sent nearly 600,000 letters, made 230,000 phone calls, and published hundreds of social media posts.—
Jesse Pines,
Forbes.com,
6 June 2026
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Maradona, for his part, repeatedly backheeled the ball while sprinting at full pelt, leaving England defenders unsure whether to follow the player or the ball.—
Michael Cox,
New York Times,
3 June 2026
Adjective
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The two men emerged from a crowded field of candidates in the most unpredictable governor’s race in more than a quarter of a century.—
Seema Mehta,
Los Angeles Times,
9 June 2026
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Prices are subject to rapid, unpredictable changes due to factors like, but not limited to, supply/demand, weather, and geopolitical events.—
USA TODAY,
USA Today,
9 June 2026
Adjective
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But it's also made people even more skeptical of public figures whose appearances seem naturally frozen in time.—
Charles Trepany,
USA Today,
29 May 2026
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Many consumers are wary, skeptical, and even disgusted by AI content in ads.—
Melissa A. Wheeler,
Forbes.com,
28 May 2026
Adjective
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Rigorous, blustery winter; winding sleety spring; hot, moist enervating summer; changeful autumn with its dog-days; these are absolutely unknown.—
San Diego Union-Tribune,
San Diego Union-Tribune,
1 Jan. 2023
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Hers is the kind of face that inspires directors to tight framing — gleaming, as if smoothed from marble, and yet somehow pliant, changeful.—
Jordan Kisner Jack Davison,
New York Times,
11 Oct. 2022
Adjective
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The duo first appear in parodied versions of the Longlegs roles originated by Blair Underwood and Maika Monroe midway through Scary Movie, standing by as their fellow officers are sent off after a suspicious perp.—
Ryan Coleman,
Entertainment Weekly,
6 June 2026
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The Bahraini military urged residents to exercise caution around any unfamiliar or suspicious objects that may have fallen as a result of the attacks and to report them immediately to authorities.—
Rena Rowe,
The Washington Examiner,
6 June 2026
Adjective
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Because the chemicals and the tank were deemed unstable, responders couldn't immediately access all the areas of the facility to search for additional victims, officials said.—
Jeanine Santucci,
USA Today,
29 May 2026
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So we are used to operating in a very unstable context.—
Nick Vivarelli,
Variety,
28 May 2026
Adjective
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Studies examining how alcohol affects people’s eating habits have produced inconsistent results, University of Sydney researchers reported in Obesity Reviews.—
Teresa Mull,
FOXNews.com,
6 June 2026
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As Manaea walked off the mound Tuesday night, Mendoza clapped his hands from the bottom step of the Mets’ dugout in Seattle with exuberance inconsistent with the Mets’ early June standing.—
Will Sammon,
New York Times,
5 June 2026
Cite this Entry
“Uncertain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/uncertain. Accessed 11 Jun. 2026.
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