Requisite
Requisite adjective - Impossible to do without.
Sustaining and requisite are semantically related. In some cases you can use "Sustaining" instead an adjective "Requisite".
Nearby Word: requisition
Sustaining
Requisite and sustaining are semantically related. Sometimes you can use "Requisite" instead an adjective "Sustaining".
Mutual synonyms
Cite this Source
Sustaining and Requisite. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/requisite/sustaining
Requisite & Sustaining. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/requisite/sustaining>.
Sustaining or Requisite. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/requisite/sustaining.
Google Ngram Viewer shows how "requisite" and "sustaining" have occurred on timeline