Blue
Blue adjective - Depicting or referring to sexual matters in a way that is unacceptable in polite society.
Rigourous and blue are semantically related in behaviour topic. In some cases you can use "Rigourous" instead an adjective "Blue", when it comes to topics like puritanical.
Rigourous
Mutual synonyms
Cite this Source
Rigourous and Blue. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/blue/rigourous
Blue & Rigourous. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/blue/rigourous>.
Rigourous or Blue. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/blue/rigourous.
Google Ngram Viewer shows how "blue" and "rigourous" have occurred on timeline