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2 entries under adjective topic. ×

1
dubious(clear, honest, uncertain, doubtful)
0
faltering(uncertain, doubtful, unfaltering, convalescent)
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APASmart Define. (2015). undoubtful thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/undoubtful/thesaurus/antonyms
ChicagoSmart Define. 2015. "undoubtful thesaurus" https://smartdefine.org/undoubtful/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2015, undoubtful thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/undoubtful/thesaurus/antonyms>.
MLASmart Define. "undoubtful thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/undoubtful/thesaurus/antonyms>