Auxiliary and Needful

Opposite meaning words

Auxiliary adjective - Available to supply something extra when needed.

Usage example: the auditorium has an auxiliary cooling system used only on particularly sweltering days

Show all Definitions

Needful is an antonym for auxiliary.

Needful adjective - Impossible to do without.

Show all Definitions

Auxiliary is an antonym for needful.

Nearby Words: need, needed, needy, needfully

Cite this Source

Needful and Auxiliary. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/auxiliary/needful

Auxiliary & Needful. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/auxiliary/needful>.

Needful or Auxiliary. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/auxiliary/needful.

Google Ngram Viewer shows how "auxiliary" and "needful" have occurred on timeline