Controvertible and Irrefragable

Controvertible

Controvertible adjective - Open to question or dispute.
Usage example: a controvertible decision to permit smoking in certain public spaces around town

Irrefragable is an antonym for controvertible.

Irrefragable

Irrefragable adjective - Not capable of being challenged or proved wrong.
Usage example: the prosecutor painstakingly built an irrefragable case

Controvertible is an antonym for irrefragable.
Cite this Source
Irrefragable and Controvertible. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/controvertible/irrefragable
Controvertible & Irrefragable. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/controvertible/irrefragable>.
Irrefragable or Controvertible. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/controvertible/irrefragable.
Google Ngram Viewer shows how "controvertible" and "irrefragable" have occurred on timeline