Accessory and Requisite

Accessory

Accessory adjective - Available to supply something extra when needed.
Usage example: most phone services offer accessory features such as call-waiting

Requisite is an antonym for accessory.

Requisite

Requisite adjective - Impossible to do without.

Accessory is an antonym for requisite.

Nearby Word: requisition

How words are described

good good accessory good requisite
actual actual accessory actual requisite
essential essential accessory essential requisite
Cite this Source
Requisite and Accessory. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/accessory/requisite
Accessory & Requisite. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/accessory/requisite>.
Requisite or Accessory. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/accessory/requisite.
Google Ngram Viewer shows how "accessory" and "requisite" have occurred on timeline