Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Not determined and doubtful are semantically related. In some cases you can use "Not determined" instead an adjective "Doubtful".
Not determined
Doubtful and not determined are semantically related. Sometimes you can use "Doubtful" instead an adjective phrase "Not determined".
Mutual synonyms
Related pairs
- unsettled and doubtful
- unsettled and not determined
- obscure and doubtful
- obscure and not determined
- unclear and doubtful
- unclear and not determined
- hesitant and doubtful
- hesitant and not determined
- faltering and doubtful
- faltering and not determined
- irresolute and doubtful
- irresolute and not determined
- undetermined and doubtful
- undetermined and not determined
Cite this Source
Not determined and Doubtful. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/doubtful/not_determined
Doubtful & Not determined. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/doubtful/not_determined>.
Not determined or Doubtful. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/doubtful/not_determined.
Google Ngram Viewer shows how "doubtful" and "not determined" have occurred on timeline