All-important and Supplemental

Opposite meaning words

All-important adjective - Impossible to do without.

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Supplemental is an antonym for all-important.

Supplemental adjective - Available to supply something extra when needed.

Usage example: the new program will provide supplemental health insurance to thousands of workers

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All-important is an antonym for supplemental.

Cite this Source

Supplemental and All-important. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/all-important/supplemental

All-important & Supplemental. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/all-important/supplemental>.

Supplemental or All-important. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/all-important/supplemental.