Arduousness
Arduousness noun - Extreme effortfulness.
Weightiness and arduousness are semantically related. In some cases you can use "Weightiness" instead a noun "Arduousness".
Weightiness
Weightiness noun - The state or quality of being heavy.
Arduousness and weightiness are semantically related. Sometimes you can use "Arduousness" instead a noun "Weightiness".
Cite this Source
Weightiness and Arduousness. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/arduousness/weightiness
Arduousness & Weightiness. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/arduousness/weightiness>.
Weightiness or Arduousness. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/arduousness/weightiness.
Google Ngram Viewer shows how "arduousness" and "weightiness" have occurred on timeline