Rigour
Rigour noun - Excessive sternness.
Stiffening and rigour are semantically related. In some cases you can use "Stiffening" instead a noun "Rigour".
Stiffening
Stiffening noun - The act of becoming stiff.
Rigour and stiffening are semantically related. Sometimes you can use "Rigour" instead a noun "Stiffening".
Cite this Source
Stiffening and Rigour. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/rigour/stiffening
Rigour & Stiffening. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/rigour/stiffening>.
Stiffening or Rigour. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/rigour/stiffening.
Google Ngram Viewer shows how "rigour" and "stiffening" have occurred on timeline