Grueling and Rigorous

Grueling

Grueling adjective - Requiring considerable physical or mental effort.
Usage example: running a marathon is grueling

Rigorous and grueling are semantically related. In some cases you can use "Rigorous" instead an adjective "Grueling".

Rigorous

Rigorous adjective - Requiring considerable physical or mental effort.
Usage example: studied for umpteen months for the rigorous exam

Grueling and rigorous are semantically related. Sometimes you can use "Grueling" instead an adjective "Rigorous".

Nearby Words: rigorously, rigor, rigour, rigorism
Cite this Source
Rigorous and Grueling. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/grueling/rigorous
Grueling & Rigorous. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/grueling/rigorous>.
Rigorous or Grueling. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/grueling/rigorous.
Google Ngram Viewer shows how "grueling" and "rigorous" have occurred on timeline