Doubtful and Uncertain

Doubtful

Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Usage example: he was doubtful about the decision to complete the project despite its mounting problems

Uncertain is a synonym for doubtful in property topic. In some cases you can use "Uncertain" instead the word "Doubtful" as an adjective or an adverb, when it comes to topics like certain, honest, dubious, questionable. popular alternative

Uncertain

Uncertain adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Usage example: never uncertain of her political beliefs or judgment, she was a decisive and fearless leader

Doubtful is a synonym for uncertain in property topic. You can use "Doubtful" instead the word "Uncertain" as an adjective or an adverb, if it concerns topics such as certain, honest, dubious, hesitant. popular alternative

Nearby Words: uncertainty, uncertainly
Cite this Source
Uncertain and Doubtful. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/doubtful/uncertain
Doubtful & Uncertain. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/doubtful/uncertain>.
Uncertain or Doubtful. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/doubtful/uncertain.
Google Ngram Viewer shows how "doubtful" and "uncertain" have occurred on timeline