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
Superfluous and auxiliary are semantically related. In some cases you can use "Superfluous" instead an adjective "Auxiliary".
Superfluous
Superfluous adjective - Being over what is needed.
Auxiliary and superfluous are semantically related. Sometimes you can use "Auxiliary" instead an adjective "Superfluous".
Nearby Words: superfluity, superfluously
Mutual synonyms
Cite this Source
Superfluous and Auxiliary. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/auxiliary/superfluous
Auxiliary & Superfluous. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/auxiliary/superfluous>.
Superfluous or Auxiliary. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/auxiliary/superfluous.
Google Ngram Viewer shows how "auxiliary" and "superfluous" have occurred on timeline