Rigorousness
Rigorousness noun - The quality or state of being demanding or unyielding (as in discipline or criticism).
Strenuousness and rigorousness are semantically related. In some cases you can use "Strenuousness" instead a noun "Rigorousness".
Strenuousness
Strenuousness noun - Extreme effortfulness.
Rigorousness and strenuousness are semantically related. Sometimes you can use "Rigorousness" instead a noun "Strenuousness".
Cite this Source
Strenuousness and Rigorousness. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/rigorousness/strenuousness
Rigorousness & Strenuousness. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/rigorousness/strenuousness>.
Strenuousness or Rigorousness. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/rigorousness/strenuousness.
Google Ngram Viewer shows how "rigorousness" and "strenuousness" have occurred on timeline