At work and Laborious

At work

At work adjective - On the job.

Laborious and at work are semantically related. In some cases you can use "Laborious" instead an adjective phrase "At work".

Laborious

Laborious adjective - Involved in often constant activity.

At work and laborious are semantically related. Sometimes you can use "At work" instead an adjective "Laborious".
Cite this Source
Laborious and At work. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/at_work/laborious
At work & Laborious. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/at_work/laborious>.
Laborious or At work. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/at_work/laborious.
Google Ngram Viewer shows how "at work" and "laborious" have occurred on timeline