(n) being unsettled or in doubt or dependent on chance, Syn. uncertainness, precariousness, Ant. certainty, Example:the uncertainty of the outcome; the precariousness of his income
(n) (quantum theory) the theory that it is impossible to measure both energy and time (or position and momentum) completely accurately at the same time, Syn. indeterminacy principle
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)