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
How exactly those develop may still be uncertain — no one's arguing that the models are currently perfect, Proistosescu said.
The venture firm Binary Capital faces an uncertain future after allegations of serial sexual harassment by partner Justin Caldbeck forced his resignation and that of his partner.
Layoffs are rampant, unemployment is high and our state's future is uncertain.
Its fate remains uncertain as senators head back to their districts for a weeklong recess.
Any further erosion of these rules will likely plunge the already-uncertain landscape of trans health care coverage into total chaos.
The retreat is symptomatic of the current state of haziness in the Obamacare exchanges, with companies struggling to come up with plans and propose premiums while the fate of the law itself is uncertain.
House Speaker Paul Ryan and Vice President Mike Pence both spoke of the need for tax reform today though its chances of being worked out this year are uncertain.
Whether barring companies with unequal voting rights from indexes would prompt them to opt for a different share class structure when going public is 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
What made you want to look up uncertain? Please tell us where you read or heard it (including the quote, if possible).