Supplement
Supplement noun - Something added (as by growth).
Supplemental and supplement are semantically related. In some cases you can replace term "Supplemental" with "Supplement", this nouns are similar.
Supplemental
Supplemental adjective - Available to supply something extra when needed.
Supplement and supplemental are semantically related. Sometimes you can use "Supplement" instead a noun "Supplemental".
Cite this Source
Supplemental and Supplement. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/supplement/supplemental
Supplement & Supplemental. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/supplement/supplemental>.
Supplemental or Supplement. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/supplement/supplemental.
Google Ngram Viewer shows how "supplement" and "supplemental" have occurred on timeline