Indubitable and Problematic

Indubitable

Indubitable adjective - Not capable of being challenged or proved wrong.
Usage example: the indubitable fact that there are no more woolly mammoths or saber-toothed tigers around

Problematic is an antonym for indubitable.

Nearby Word: indubitably

Problematic

Problematic adjective - Giving good reason for being doubted, questioned, or challenged.
Usage example: whether we should even bother finishing the project at this point is problematic

Indubitable is an antonym for problematic.

Cite this Source
Problematic and Indubitable. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/indubitable/problematic
Indubitable & Problematic. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/indubitable/problematic>.
Problematic or Indubitable. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/indubitable/problematic.
Google Ngram Viewer shows how "indubitable" and "problematic" have occurred on timeline