Synonyms of doubtfulness

2 Syllables
mistrust, question
3 Syllables
skepticism, dubiousness, suspicion, dubiety
4 Syllables
uncertainty, uncertainties, ambiguities, indecision, polysemy, ambiguousness, ambiguity
5 Syllables
amphibology, equivocacy, polysemousness, untrustworthiness, questionableness, equivocation, equivocations
6 Syllables
improbability, questionability, inconclusiveness, implausibility
7 Syllables
indeterminateness