Conclusive and Doubtable
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.
Doubtable is an antonym for conclusive.
Doubtable
Doubtable adjective - Open to question or dispute.
Usage example: that his wartime exploit happened at all is very doubtable
Conclusive is an antonym for doubtable.
Cite this Source
Doubtable and Conclusive. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/conclusive/doubtable
Conclusive & Doubtable. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/conclusive/doubtable>.
Doubtable or Conclusive. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/conclusive/doubtable.
Google Ngram Viewer shows how "conclusive" and "doubtable" have occurred on timeline