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
And those tariffs will fuel another wave of scams and attacks, as businesses and shoppers in America and elsewhere react to the newly uncertain climate.
—
Zak Doffman, Forbes.com, 11 Apr. 2025
Here’s how to protect yourself Investing in uncertain times: Here’s what investors should know
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Debt glorification is not the only bad advice being peddled on the internet.
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But the path to due process for those already removed from the country — including Abrego Garcia — remains uncertain.
—Julia Poe, Chicago Tribune, 11 Apr. 2025
Small Ceremonies, by Kyle Edwards Struggling to shake a losing streak, the St. Croix Tigers, Winnipeg’s North End hockey team, faces an uncertain future in Kyle Edwards’ pulsing, thoughtful novel.
—Monitor Contributors, Christian Science Monitor, 11 Apr. 2025
See All Example Sentences for uncertain
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Zak Doffman, Forbes.com, 11 Apr. 2025
Here’s how to protect yourself Investing in uncertain times: Here’s what investors should know
Private equity wants a larger piece of workplace retirement plan assets
Debt glorification is not the only bad advice being peddled on the internet.
—Sheila Bair, Former Chair Of The Fdic, CNBC, 11 Apr. 2025
But the path to due process for those already removed from the country — including Abrego Garcia — remains uncertain.
—Julia Poe, Chicago Tribune, 11 Apr. 2025
Small Ceremonies, by Kyle Edwards Struggling to shake a losing streak, the St. Croix Tigers, Winnipeg’s North End hockey team, faces an uncertain future in Kyle Edwards’ pulsing, thoughtful novel.
—Monitor Contributors, Christian Science Monitor, 11 Apr. 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 21 Apr. 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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