doubtfulness   (TTS Sound)

The noun doubtfulness has 2 senses

• doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness -- (the state of being unsure of something)


• doubt, dubiousness, doubtfulness, question -- (uncertainty about the truth or factuality or existence of something; "the dubiousness of his claim"; "there is no question about the validity of the enterprise")