Akademik

doubtfulness
noun
1. the state of being unsure of something
Syn: ↑doubt, ↑uncertainty, ↑incertitude, ↑dubiety, ↑dubiousness
Ant: ↑certainty (for: ↑uncertainty)
Derivationally related forms: ↑dubious (for: ↑dubiousness), ↑doubtful, ↑doubt (for: ↑doubt)
Hypernyms: ↑cognitive state, ↑state of mind
Hyponyms:
mental reservation, ↑reservation, ↑arriere pensee, ↑misgiving, ↑mistrust, ↑distrust, ↑suspicion, ↑incredulity, ↑disbelief, ↑skepticism, ↑mental rejection, ↑indecision, ↑indecisiveness, ↑irresolution, ↑peradventure, ↑suspense
2. uncertainty about the truth or factuality or existence of something
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the dubiousness of his claim

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there is no question about the validity of the enterprise

Syn: ↑doubt, ↑dubiousness, ↑question
Derivationally related forms: ↑question (for: ↑question), ↑doubtful, ↑dubious (for: ↑dubiousness), ↑doubt (for: ↑doubt)
Hypernyms: ↑uncertainty, ↑uncertainness, ↑precariousness

Useful english dictionary. 2012.