Principal
Principal adjective - Coming before all others in importance.
Usage example: our principal reason for coming here today
Subsidiary
Subsidiary adjective - Functioning in a supporting capacity.
Principal is an antonym for subsidiary.
Nearby Word: subsidiarity
Cite this Source
Subsidiary and Principal. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/principal/subsidiary
Principal & Subsidiary. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/principal/subsidiary>.
Subsidiary or Principal. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/principal/subsidiary.
Google Ngram Viewer shows how "principal" and "subsidiary" have occurred on timeline