Fastness
Fastness noun - A high rate of movement or performance.
Rigorousness and fastness are semantically related. In some cases you can use "Rigorousness" instead a noun "Fastness".
Nearby Word: fasten
Rigorousness
Rigorousness noun - The quality or state of being demanding or unyielding (as in discipline or criticism).
Fastness and rigorousness are semantically related. Sometimes you can use "Fastness" instead a noun "Rigorousness".
Mutual synonyms
Cite this Source
Rigorousness and Fastness. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/fastness/rigorousness
Fastness & Rigorousness. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/fastness/rigorousness>.
Rigorousness or Fastness. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/fastness/rigorousness.
Google Ngram Viewer shows how "fastness" and "rigorousness" have occurred on timeline