Conclusive and Questionable
Opposite meaning words
Conclusive
Conclusive adjective - Serving to put an end to all debate or questioning.
Usage example: the archeological discovery was conclusive proof that the Vikings had indeed settled in North America around 1000 a.d.
Questionable
Questionable adjective - Open to question or dispute.
Usage example: whether it will rain today or not is questionable
Conclusive is an antonym for questionable.
Cite this Source
Questionable and Conclusive. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/conclusive/questionable
Conclusive & Questionable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/conclusive/questionable>.
Questionable or Conclusive. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/conclusive/questionable.
Google Ngram Viewer shows how "conclusive" and "questionable" have occurred on timeline