At work and Longstanding

At work

At work adjective - On the job.

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

Longstanding

Longstanding adjective - Having existed for a long time.

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