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
Complementary is a synonym for auxiliary in supplementary topic. In some cases you can use "Complementary" instead the word "Auxiliary" as an adjective or a noun.
Complementary
Complementary adjective - Related to each other in such a way that one completes the other.
Auxiliary is a synonym for complementary. You can use "Auxiliary" instead the word "Complementary" as an adjective or a noun.
Mutual synonyms
Related pairs
- accessory and auxiliary
- accessory and complementary
- fellow and auxiliary
- fellow and complementary
- companion and auxiliary
- companion and complementary
- reserve and auxiliary
- reserve and complementary
- subordinate and auxiliary
- subordinate and complementary
- supportive and auxiliary
- supportive and complementary
- subsidiary and auxiliary
- subsidiary and complementary
Cite this Source
Complementary and Auxiliary. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/auxiliary/complementary
Auxiliary & Complementary. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/auxiliary/complementary>.
Complementary or Auxiliary. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/auxiliary/complementary.
Google Ngram Viewer shows how "auxiliary" and "complementary" have occurred on timeline