uncertain
adjective
un·cer·tain
ˌən-ˈsər-tᵊn 
1
3
: indefinite, indeterminate
the time of departure is uncertain
4
: not certain to occur : problematical
his success was uncertain
5
: not reliable : untrustworthy
an uncertain ally
uncertainly
adverb
Examples of uncertain in a Sentence
The time of departure is still uncertain.
We are still uncertain of the truth.
She remains uncertain about her plans.
I'm uncertain about how to respond.
The cause of the fire is uncertain.
He has an uncertain temper.
They face a financially uncertain future.
Recent Examples on the Web
Whether the court grants access to the grand jury documents remains uncertain, but for now, Trump appears determined to reclaim control of the narrative.
—
Amanda Castro, MSNBC Newsweek, 18 July 2025
Still, for Connecticut’s two Job Corps centers, the future is uncertain.
—Janhavi Munde, Hartford Courant, 18 July 2025
Employers are also generally cautious about hiring due to uncertain trade and tax policies.
—Brittney Melton, NPR, 17 July 2025
Analysts said the true impact of the new export controls remains uncertain, as details are still unclear.
—John Liu, CNN Money, 17 July 2025
See All Example Sentences for uncertain
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Amanda Castro, MSNBC Newsweek, 18 July 2025
Still, for Connecticut’s two Job Corps centers, the future is uncertain.
—Janhavi Munde, Hartford Courant, 18 July 2025
Employers are also generally cautious about hiring due to uncertain trade and tax policies.
—Brittney Melton, NPR, 17 July 2025
Analysts said the true impact of the new export controls remains uncertain, as details are still unclear.
—John Liu, CNN Money, 17 July 2025
See All Example Sentences for uncertain
Cite this Entry
“Uncertain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uncertain. Accessed 22 Jul. 2025.
Copy CitationKids Definition
uncertain
adjective
un·cer·tain
ˌən-ˈsərt-ᵊn
ˈən-
1
: not definite or fixed
an uncertain quantity
2
a
: not sure
uncertain of the truth
b
: not known for sure
an uncertain claim
3
: likely to change : not dependable
uncertain weather
uncertainly
adverb
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