Profound
Profound adjective - Difficult for one of ordinary knowledge or intelligence to understand.
Toilsome and profound are semantically related. In some cases you can use "Toilsome" instead an adjective "Profound".
Nearby Words: profoundly, profoundness
Cite this Source
Toilsome and Profound. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/profound/toilsome
Profound & Toilsome. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/profound/toilsome>.
Toilsome or Profound. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/profound/toilsome.
Google Ngram Viewer shows how "profound" and "toilsome" have occurred on timeline