Primary
Primary adjective - Of first rank or importance or value; direct and immediate rather than secondary.
Usage example: primary goals
Supplemental is an antonym for primary.
Supplemental
Supplemental adjective - Available to supply something extra when needed.
Usage example: the new program will provide supplemental health insurance to thousands of workers
Primary is an antonym for supplemental.
Both words in one sentence
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But just to be on the safe side, Baton introduced BBS, a new primary brand for its stations, and an expanded lineup of supplemental programming.
Source: Creator / CTV
Cite this Source
Supplemental and Primary. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/primary/supplemental
Primary & Supplemental. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/primary/supplemental>.
Supplemental or Primary. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/primary/supplemental.
Google Ngram Viewer shows how "primary" and "supplemental" have occurred on timeline