Doubtfulness [noun]

I dont bleve I could go way, said Dil, with soft-toned doubtfulness.

He approached his task with "great doubtfulness," fully conscious of the dilemma involved.

A man's apprehension may be true, when it is but a wavering opinion, with the greatest doubtfulness.

They tend to men's doubtfulness and uncertainty of their religion; seeing man is fallible, and so may his constitutions be.

Their present lack of cash, the doubtfulness of being able to sell and deliver the horses, made ransom a glittering possibility.

But perhaps it was a feeling of doubtfulness about the coat, which prompted a startling departure in his costume.

But at the very bottom of Ellen's heart there was a little secret doubtfulness respecting her undertaking.

While at New York all is calm doubtfulness or indolent anticipation, at Washington there is excitement and activity.

He could not, however, control the doubtfulness that was impressing him with regard to Eugene Pearson.

Vittoria concluded her perfect expression of confidence with this atoning doubtfulness.