Auxiliary
Auxiliary adjective - Available to supply something extra when needed.
Usage example: the auditorium has an auxiliary cooling system used only on particularly sweltering days
Surplus
Surplus adjective - Being over what is needed.
Auxiliary and surplus are semantically related. Sometimes you can use "Auxiliary" instead the word "Surplus" as an adjective or an adverb.
Nearby Word: surplusage
Mutual synonyms
Related pairs
- reserve and auxiliary
- reserve and surplus
- spare and auxiliary
- spare and surplus
- superfluous and auxiliary
- superfluous and surplus
- supplementary and auxiliary
- supplementary and surplus
- further and auxiliary
- further and surplus
- extra and auxiliary
- extra and surplus
- additional and auxiliary
- additional and surplus
How words are described
Cite this Source
Surplus and Auxiliary. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/auxiliary/surplus
Auxiliary & Surplus. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/auxiliary/surplus>.
Surplus or Auxiliary. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/auxiliary/surplus.
Google Ngram Viewer shows how "auxiliary" and "surplus" have occurred on timeline