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
Required
Required adjective - Forcing one's compliance or participation by or as if by law.
Nearby Words: requirement, requiring
Both words in one sentence
- Galactic privateers get a paycheck and an auxiliary Navy rank, but they are required to obey Galactic law and follow orders from lawful superiors.
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Since the only penalty for losing an animal companion is the ritual required to call a new one (unlike most other pets or auxiliary characters), using them as semi-disposable "meat shields" is a viable strategy.
Source: Chronic Pet Killer
Cite this Source
Required and Auxiliary. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/auxiliary/required
Auxiliary & Required. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/auxiliary/required>.
Required or Auxiliary. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/auxiliary/required.
Google Ngram Viewer shows how "auxiliary" and "required" have occurred on timeline