Assiduous
Assiduous adjective - Involved in often constant activity.
Lettered and assiduous are semantically related. In some cases you can use "Lettered" instead an adjective "Assiduous".
Nearby Words: assiduity, assiduousness
Cite this Source
Lettered and Assiduous. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/assiduous/lettered
Assiduous & Lettered. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/assiduous/lettered>.
Lettered or Assiduous. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/assiduous/lettered.
Google Ngram Viewer shows how "assiduous" and "lettered" have occurred on timeline