uncertainty Meaning, Definition & Usage

  1. noun being unsettled or in doubt or dependent on chance
    precariousness; uncertainness.
    • the uncertainty of the outcome
    • the precariousness of his income
  2. noun the state of being unsure of something
    dubiousness; doubtfulness; doubt; dubiety; incertitude.

WordNet

Un*cer"tain*ty noun
Wordforms
plural Uncertainties
Definitions
  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.

Webster 1913