Difficult
Difficult adjective - Requiring considerable physical or mental effort.
Deeper and difficult are semantically related In some cases you can replace term "Deeper" with "Difficult", this adjectives are similar.
Nearby Word: difficulty
Deeper
Cite this Source
Deeper and Difficult. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/difficult/deeper
Difficult & Deeper. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/difficult/deeper>.
Deeper or Difficult. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/difficult/deeper.
Google Ngram Viewer shows how "difficult" and "deeper" have occurred on timeline