doubtfulness
n 1: the state of being unsure of something [syn: {doubt}, {uncertainty},
{incertitude}, {dubiety}, {dubiousness}] [ant: {certainty}]
2: uncertainty about the truth or factuality of existence of
something; "the dubiousness of his claim"; "there is no
question about the validity of the enterprise" [syn: {doubt},
{dubiousness}, {question}]