Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Lumping and difficult are semantically related. In some cases you can replace term "Lumping" with "Difficult", this adjectives are similar.
Nearby Word: difficulty
Cite this Source
Lumping and Difficult. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/difficult/lumping
Difficult & Lumping. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/difficult/lumping>.
Lumping or Difficult. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/difficult/lumping.
Google Ngram Viewer shows how "difficult" and "lumping" have occurred on timeline