Serious
Serious adjective - Not joking or playful in mood or manner.
Toilsome and serious are semantically related. In some cases you can use "Toilsome" instead an adjective "Serious".
Nearby Words: seriously, seriousness
Toilsome
Mutual synonyms
Cite this Source
Toilsome and Serious. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/serious/toilsome
Serious & Toilsome. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/serious/toilsome>.
Toilsome or Serious. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/serious/toilsome.
Google Ngram Viewer shows how "serious" and "toilsome" have occurred on timeline