Meaning & use
uncertainty
A state of doubt or lack of confidence about what will happen or what is true.
See it in a sentence
The uncertainty surrounding the merger left many employees anxious about their jobs.
Scientists always report a margin of uncertainty alongside their experimental measurements.
A note on using this word
In scientific writing, uncertainty has a precise, measurable meaning distinct from its everyday sense of general doubt.
Words with a similar meaning
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Words with an opposite meaning
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