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
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 uncertain
Exactly how and when Jett died remains uncertain, and no arrests have been made in connection with her death.
—
City News Service, San Diego Union-Tribune, 6 Sep. 2025
The outlook for right-hander Edward Cabrera, on the 15-day IL with a right elbow sprain, remains uncertain.
—Steve Gorten, Miami Herald, 5 Sep. 2025
An uneasy, uncertain hurricane forecast kicks off September.
—Nicole Fallert, USA Today, 5 Sep. 2025
Astrology in uncertain times Why does astrology resonate now?
—Christopher P. Scheitle, The Conversation, 5 Sep. 2025
See All Example Sentences for uncertain
City News Service, San Diego Union-Tribune, 6 Sep. 2025
The outlook for right-hander Edward Cabrera, on the 15-day IL with a right elbow sprain, remains uncertain.
—Steve Gorten, Miami Herald, 5 Sep. 2025
An uneasy, uncertain hurricane forecast kicks off September.
—Nicole Fallert, USA Today, 5 Sep. 2025
Astrology in uncertain times Why does astrology resonate now?
—Christopher P. Scheitle, The Conversation, 5 Sep. 2025
See All Example Sentences for uncertain
Recent Examples of Synonyms for uncertain
Adjective
-
CaSSIS, meanwhile, could provide insights into 3I/ATLAS' volatile activity and its composition.—
Andrew Jones,
Space.com,
3 Sep. 2025
-
The film also chronicles the ups and downs of Kerr's volatile relationship with Dawn.—
Ashley Hume,
FOXNews.com,
3 Sep. 2025
Adjective
-
The footage revealed a canine still deeply affected by past experiences, unsure of his safety even outdoors, and in the company of his new owner.—
Melissa Fleur Afshar,
MSNBC Newsweek,
2 Sep. 2025
-
Her team feels valued but adrift, unsure what matters most.—
Vibhas Ratanjee,
Forbes.com,
1 Sep. 2025
Adjective
-
Fall is a beautiful time to go hiking, but with the colorful foliage comes dropping temperatures, rainy days, and unpredictable weather.—
Anne Taylor,
Travel + Leisure,
5 Sep. 2025
-
Several party officials argued Kaegi’s valuations were unpredictable and faulted his management of certain tax breaks.—
A.D. Quig,
Chicago Tribune,
5 Sep. 2025
Adjective
-
The experts on the ACIP were all dismissed by Kennedy Jr and replaced with individuals who are far more vaccine-skeptical and thought to be less expert by many.—
Judy Stone,
Forbes.com,
28 Aug. 2025
-
Companies have been skeptical too.—
Justin Worland,
Time,
27 Aug. 2025
Adjective
-
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
-
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
-
These advanced capabilities can detect an individual crossing a virtual boundary, expose suspicious loitering or unusual motion patterns across vast areas and even recognize unknown faces in high-security zones.—
Michael Evanoff,
Forbes.com,
2 Sep. 2025
-
The 63-year-old Plainfield man died from drowning but the manner of his suspicious death was ruled a homicide, according to the Cook County medical examiner’ office.—
Christy Gutowski,
Chicago Tribune,
2 Sep. 2025
Adjective
-
This discovery suggests a much more active early Earth, but this tectonic activity was still unstable, with crust sinking down not in a continuous motion, but in pulses, stopping for millions of years and then resuming activity.—
David Bressan,
Forbes.com,
31 Aug. 2025
-
In some cases, unstable shelter and food.—
Alan J. Borsuk,
jsonline.com,
30 Aug. 2025
Adjective
-
Too inconsistent for Andoni Iraola’s liking, only averaging a goal or assist every 175 minutes in all competitions last season, his talent isn’t in doubt, but can Keith Andrews turn Brentford’s record signing into a top-level Premier League player?—
Tim Spiers,
New York Times,
2 Sep. 2025
-
The combination of his age, declining offensive efficiency, high-volume turnovers and inconsistent play likely plays a factor.—
Ricardo Klein,
MSNBC Newsweek,
1 Sep. 2025
Cite this Entry
“Uncertain.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/uncertain. Accessed 8 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share