Hard
Hard adverb - With great effort or determination.
Rigourously and hard are semantically related. In some cases you can replace term "Rigourously" with "Hard", this adverbs are similar.
Rigourously
Mutual synonyms
Cite this Source
Rigourously and Hard. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/hard/rigourously
Hard & Rigourously. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/hard/rigourously>.
Rigourously or Hard. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/hard/rigourously.
Google Ngram Viewer shows how "hard" and "rigourously" have occurred on timeline