The state of being uncertain; a lack of definite knowledge, assurance, or conviction about something. noun
The uncertainty of the weather made it difficult to plan the outdoor event.
There is a lot of uncertainty surrounding the outcome of the election.
A situation or condition where the outcome or result is not known or predictable. noun
Economic uncertainty can lead to a decrease in consumer spending.
The uncertainty in the stock market has investors worried.
Something that is not known or certain; an unknown or unpredictable factor. noun
The future is full of uncertainties that we cannot control.
One of the uncertainties in the project is the availability of resources.