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}]