Complex
Laborious
Laborious adjective - Requiring considerable physical or mental effort.
Usage example: the laborious task of cleaning up the oil spill
Mutual synonyms
Related pairs
Cite this Source
Laborious and Complex. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/complex/laborious
Complex & Laborious. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/complex/laborious>.
Laborious or Complex. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/complex/laborious.
Google Ngram Viewer shows how "complex" and "laborious" have occurred on timeline