1
head
1
hedging(noun, cover, line, lie, lying)
1
imponderability
1
inconclusiveness(noun, trouble, concern, anxiety, confusion)
1
incredulousness
1
indecision(noun, trouble, concern, anxiety, confusion)
1
indecisiveness
1
indeterminacy
1
indeterminateness(doubt, uncertainty, vagueness, haziness)
1
indetermination
1
inquiry
1
instability
1
intangibility
1
interrogation
1
interrogative
1
lack of confidence(noun, expression, idiom, trouble, concern)
1
laxity
1
line(noun, cover, lie, lying, stall)
1
looseness
1
lying(noun, cover, line, lie, vagueness)
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APASmart Define. (2016). doubtfulness thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/doubtfulness/thesaurus/synonyms
ChicagoSmart Define. 2016. "doubtfulness thesaurus" https://smartdefine.org/doubtfulness/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, doubtfulness thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/doubtfulness/thesaurus/synonyms>.
MLASmart Define. "doubtfulness thesaurus" 29 February 2016. Web. 26 September 2026. <https://smartdefine.org/doubtfulness/thesaurus/synonyms>