Synonyms: uncertainness, uncertainty, precariousness
Definition: being unsettled or in doubt or dependent on chance
Usage: the uncertainty of the outcome; the precariousness of his income
Similar words: quality
Definition: an essential and distinguishing attribute of something or someone
Usage: the quality of mercy is not strained--Shakespeare
Synonyms: incertitude, uncertainty, doubt, doubtfulness, dubiety, dubiousness
Definition: the state of being unsure of something
Similar words: cognitive state, state of mind
Definition: the state of a person's cognitive processes