Laborious
Laborious adjective - Requiring considerable physical or mental effort.
Usage example: the laborious task of cleaning up the oil spill
Rigorous
Rigorous adjective - Requiring considerable physical or mental effort.
Usage example: studied for umpteen months for the rigorous exam
Laborious is a synonym for rigorous in nice topic. Sometimes you can use "Laborious" instead an adjective "Rigorous", if it concerns topics such as heavy. archaic substitute
Mutual synonyms
Related pairs
- strenuous and laborious
- strenuous and rigorous
- stiff and laborious
- stiff and rigorous
- demanding and laborious
- demanding and rigorous
- scrupulous and laborious
- scrupulous and rigorous
- harsh and laborious
- harsh and rigorous
- difficult and laborious
- difficult and rigorous
- heavy and laborious
- heavy and rigorous
Cite this Source
Rigorous and Laborious. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/laborious/rigorous
Laborious & Rigorous. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/laborious/rigorous>.
Rigorous or Laborious. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/laborious/rigorous.
Google Ngram Viewer shows how "laborious" and "rigorous" have occurred on timeline