Doubtful and Not certain

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Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.

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Not certain and doubtful are semantically related. In some cases you can use "Not certain" instead an adverb "Doubtful".

Definitions of Doubtful not found.

Doubtful and not certain are semantically related. Sometimes you can use "Doubtful" instead an adverb phrase "Not certain".

Cite this Source

Not certain and Doubtful. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/doubtful/not_certain

Doubtful & Not certain. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/doubtful/not_certain>.

Not certain or Doubtful. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/doubtful/not_certain.

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