indecision,
indecisiveness,
irresolution doubt concerning two or more possible alternatives or courses of action; "his indecision was only momentary but the opportunity was lost"
peradventure doubt or uncertainty as to whether something is the case; "this proves beyond peradventure that he is innocent"
doubt -
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"
Doubt, a status between belief and disbelief, involves uncertainty or distrust or lack of sureness of an alleged fact, an action, a motive, or a decision. Doubt brings into question some notion of a perceived "reality", and may involve delaying or rejecting relevant action out of concerns for mistakes or faults or appropriateness. Some definitions of doubt emphasize the state in which the mind remains suspended between two contradictory propositions and unable to assent to either of them.
OmegaWiki Dictionary
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doubt Challenge about the truth or accuracy of a matter.
doubt To lack confidence in; to disbelieve, question, or suspect.