Auxiliary and Headmost

Auxiliary

Auxiliary adjective - Available to supply something extra when needed.

Headmost is an antonym for auxiliary.

Headmost

Headmost adjective - Coming before all others in time or order.

Auxiliary is an antonym for headmost in topics: chief, earliest in order.
Cite this Source
Headmost and Auxiliary. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/auxiliary/headmost
Auxiliary & Headmost. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/auxiliary/headmost>.
Headmost or Auxiliary. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/auxiliary/headmost.
Google Ngram Viewer shows how "auxiliary" and "headmost" have occurred on timeline