Uncertainty

A state of doubt or lack of sureness.

doubt vagueness ambiguity

Uncertainty is a state of doubt or lack of sureness regarding something. It can also refer to the degree of possible error in a measurement or calculation.

/ʌnˈsɜːrtɪnti/

From Latin 'incertus', meaning 'not sure'.

doubt vagueness ambiguity insecurity

certainty certainty assurance

doubt possibility risk

ambiguity randomness error

philosophical concept statistical term