不確定; 不定性; 不可測性
Un·cer·tain·ty n.; pl. Uncertainties
1. The quality or state of being uncertain.
2. That which is uncertain; something unknown.
Our shepherd's case is every man's case that quits a moral certainty for an uncertainty. --L'Estrange.
n 1: being unsettled or in doubt; "the uncertainty of the
outcome" [syn: uncertainness] [ant: certainty]
2: the state of being unsure of something [syn: doubt, incertitude,
dubiety, doubtfulness, dubiousness] [ant: certainty]