Supportive and Supplementary

Supportive

Supportive adjective - Serving to give support to the truth or factualness of something.
Usage example: the jimmied window latch is supportive of the theory that there was forced entry into the house

Supplementary and supportive are semantically related In some cases you can use "Supplementary" instead an adjective "Supportive".

Supplementary

Supplementary adjective - Available to supply something extra when needed.
Usage example: the teacher's edition of the textbook comes with a lot of supplementary material

Supportive and supplementary are semantically related in add-on topic. Sometimes you can use "Supportive" instead an adjective "Supplementary".

Cite this Source
Supplementary and Supportive. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/supportive/supplementary
Supportive & Supplementary. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/supportive/supplementary>.
Supplementary or Supportive. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/supportive/supplementary.
Google Ngram Viewer shows how "supportive" and "supplementary" have occurred on timeline