Doubtful and Uncontestable
Opposite meaning words
Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Uncontestable is an antonym for doubtful.
Uncontestable
Cite this Source
Uncontestable and Doubtful. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/doubtful/uncontestable
Doubtful & Uncontestable. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/doubtful/uncontestable>.
Uncontestable or Doubtful. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/doubtful/uncontestable.
Google Ngram Viewer shows how "doubtful" and "uncontestable" have occurred on timeline