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
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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
But the eventual extent of the reimbursements remains uncertain after the administration appealed a court order to refund every importer who paid the $166 billion collected under IEEPA authority.
—
Bloomberg, Oc Register, 10 June 2026
When Ncuti Gatwa departed the role of the Doctor after just two seasons last year, Disney+ exited the partnership and the series’ future has remained uncertain ever since.
—Ellise Shafer, Variety, 10 June 2026
One already breathing a sigh of relief as he was projected to make it through an uncertain gubernatorial primary for Democrats.
—Kaitlyn Schallhorn, Daily News, 9 June 2026
But both SpaceX’s Starship and Blue Origin’s Blue Moon are facing uncertain timelines.
—Jackie Wattles, CNN Money, 9 June 2026
See All Example Sentences for uncertain
Bloomberg, Oc Register, 10 June 2026
When Ncuti Gatwa departed the role of the Doctor after just two seasons last year, Disney+ exited the partnership and the series’ future has remained uncertain ever since.
—Ellise Shafer, Variety, 10 June 2026
One already breathing a sigh of relief as he was projected to make it through an uncertain gubernatorial primary for Democrats.
—Kaitlyn Schallhorn, Daily News, 9 June 2026
But both SpaceX’s Starship and Blue Origin’s Blue Moon are facing uncertain timelines.
—Jackie Wattles, CNN Money, 9 June 2026
See All Example Sentences for uncertain
Recent Examples of Synonyms for uncertain
Adjective
-
Both oil prices and global equities have been volatile on news of negotiations.—
Tal Shalev,
CNN Money,
15 June 2026
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Guarantees and warranties Warranties provide vital financial peace of mind when dealing with volatile seasonal pests summer heat brings out.—
Nick Perry,
USA Today,
14 June 2026
Adjective
-
Why Perimenopause Is So Often Misidentified A December 2025 preprint in medRxiv examining perimenopause uncertainty among more than 7,600 US women found that one in three were unsure of their reproductive stage, with barriers to clinical confirmation among the key drivers.—
Allison Palmer
Updated June 13,
Sacbee.com,
13 June 2026
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The problem is companies are unsure if the timeline will hold, or whether a potential Ukraine peace deal could reopen nuclear relations again.—
Jordan Blum,
Fortune,
13 June 2026
Adjective
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The rapid rise and fall underscored silver's reputation as one of the market's most unpredictable assets.—
Faith Wakefield,
USA Today,
16 June 2026
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The restaurant intended to add automatic 18 percent tips to every bill, since international tipping culture is often unpredictable.—
Rachel Siegel,
CNN Money,
16 June 2026
Adjective
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During the Cold War, a nuclear-armed, NATO-skeptical France developed its own philosophy for war in the air.—
Joseph Ataman,
CNN Money,
13 June 2026
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Though Musk anticipates widespread automation in the next decade or two, economists are skeptical about how pervasive and fast these labor and policy shifts will be.—
Sasha Rogelberg,
Fortune,
12 June 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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This can help spot suspicious activity after an unauthorized visit.—
Kurt Knutsson,
FOXNews.com,
13 June 2026
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However, investigators determined that the fires were suspicious, according to a Thursday news release from the Woodland Police Department.—
Sean Campbell,
Sacbee.com,
12 June 2026
Adjective
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As the front moves into very warm, unstable air, some storms could turn severe.—
Eleanor Nash,
Kansas City Star,
12 June 2026
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More growth funded by unstable cash flow can create pressure that does not show up immediately.—
Michael Shribman,
Forbes.com,
12 June 2026
Adjective
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Debra Shore, a former administrator of the EPA’s Midwestern office who lives part time in Michigan City, said the federal proposal could create inconsistent protections throughout the Great Lakes — notably neighboring states like Indiana and Illinois.—
Christiana Freitag,
Chicago Tribune,
13 June 2026
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The zipper merge also helps vehicles avoid coming to a complete stop, which can lead to sudden lane switching, inconsistent driving speeds that cause crashes, long back-ups and road rage.—
Rashad Alexander,
Kansas City Star,
13 June 2026
Cite this Entry
“Uncertain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/uncertain. Accessed 18 Jun. 2026.
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