Doubt

To waver in opinion or judgment; to be in uncertainty as to belief respecting anything; to hesitate in belief; to be undecided as to the truth of the negative or the affirmative proposition; to b e undetermined.

To suspect; to fear; to be apprehensive.

To question or hold questionable; to withhold assent to; to hesitate to believe, or to be inclined not to believe; to withhold confidence from; to distrust; as, I have heard the story, but I doubt the truth of it.

To suspect; to fear; to be apprehensive of.

To fill with fear; to affright.

A fluctuation of mind arising from defect of knowledge or evidence; uncertainty of judgment or mind; unsettled state of opinion concerning the reality of an event, or the truth of an assertion, etc.; hesitation.

Uncertainty of condition.

Suspicion; fear; apprehension; dread.

Difficulty expressed or urged for solution; point unsettled; objection.

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"

the state of being unsure of something