Definition of uncertain
2 : not certain to occur : problematical his success was uncertain
3 : not reliable : untrustworthy an uncertain ally
uncertainnessplay \ˌən-ˈsər-tən-(n)əs\ noun
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 of uncertain from the Web
Trump omitted any clear commitment to the alliance’s pledge of collective defense, leaving allies uncertain whether the U.S. would come to their aid if attacked.
A measure that would allow voters to elect members of the Chicago Public Schools board once again faces an uncertain future after Senate lawmakers sought last-minute changes on the final day of spring session.
The risks are too great, the returns are too uncertain, the time scales are too long.
No one was hurt and no shots were fired, but the Tuesday night standoff caused confusion and anxiety among travelers who were uncertain about what was going on.
Sen. Richard Burr, R-N.C., the chairman of the panel, has shown an increasing zeal for pursuing the question after an uncertain start.
Whether Mr. Trump will actually reorganize his White House team remained uncertain.
The Red Sox are calling it a sprain, but manager John Farrell was uncertain about the severity.
Abbas has an ongoing rivalry with Hamas, but other challenges besides; if the Trump Administration procrastinates, or expects significant new concessions from him, Abbas’s staying power is similarly uncertain.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'uncertain'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of uncertain
UNCERTAIN Defined for English Language Learners
Definition of uncertain for English Language Learners
: not exactly known or decided : not definite or fixed
: not sure : having some doubt about something
: not definitely known
UNCERTAIN Defined for Kids
Definition of uncertain for Students
1 : not exactly known or decided on an uncertain amount
2 : not sure They were uncertain of the rules.
3 : not known for sure an uncertain claim
4 : likely to change : not dependable uncertain weather
Seen and Heard
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