Confirmed and Suppositional

Confirmed

Confirmed adjective - Being such by habit and not likely to change.

Suppositional is an antonym for confirmed.

Suppositional

Suppositional adjective - Existing only as an assumption or speculation.
Usage example: concepts regarding the origin and structure of the universe must perforce be suppositional

Confirmed is an antonym for suppositional.

Cite this Source
Suppositional and Confirmed. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/confirmed/suppositional
Confirmed & Suppositional. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/confirmed/suppositional>.
Suppositional or Confirmed. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/confirmed/suppositional.
Google Ngram Viewer shows how "confirmed" and "suppositional" have occurred on timeline