13
doubtfully(adverb, belief, uncertainly, cautiously, hesitantly)
7
questionably(adverb, unreliably)
6
suspiciously(adverb, skeptically)
5
skeptically(adverb, belief, skeptically)
5
uncertainly
4
ambiguously
4
askance(adverb, belief, sideways)
4
cynically(adverb, skeptically)
4
distrustfully
4
equivocally
4
fishily
4
incredulously(adverb, skeptically)
4
precariously
4
problematically
4
shadily
4
suspectly
4
undependably(adverb, unreliably)
4
unreliably(adverb, unreliably)
4
untrustworthily(adverb, unreliably)
3
vaguely(adverb, uncertainly)
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APASmart Define. (2015). dubiously thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/dubiously/thesaurus/synonyms
ChicagoSmart Define. 2015. "dubiously thesaurus" https://smartdefine.org/dubiously/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, dubiously thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/dubiously/thesaurus/synonyms>.
MLASmart Define. "dubiously thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/dubiously/thesaurus/synonyms>