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.
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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