Deeper
Supplementary and deeper are semantically related. In some cases you can use "Supplementary" instead an adjective "Deeper".
Supplementary
Supplementary adjective - Available to supply something extra when needed.
Deeper and supplementary are semantically related. Sometimes you can use "Deeper" instead an adjective "Supplementary".
Mutual synonyms
Cite this Source
Supplementary and Deeper. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/deeper/supplementary
Deeper & Supplementary. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/deeper/supplementary>.
Supplementary or Deeper. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/deeper/supplementary.
Google Ngram Viewer shows how "deeper" and "supplementary" have occurred on timeline