Synonyms of supplementalnext
1
: serving to supplement
2
: nonscheduled
a supplemental airline
supplemental noun

Examples of supplemental in a Sentence

She receives a supplemental income every month from the government. the new program will provide supplemental health insurance to thousands of workers
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The city had to plug a roughly $70 million budget shortfall with two supplemental budgets for the last fiscal year that ended June 30. Gayla Cawley, Boston Herald, 7 July 2026 Provide supplemental irrigation as needed during the first year after planting to develop a robust root system. Kim Toscano, Southern Living, 3 July 2026 Over time, a more extensive root system improves a plant’s ability to tolerate hot, dry conditions and access water stored deeper in the soil, reducing the need for frequent supplemental irrigation. Anthony Reardon, Kansas City Star, 7 July 2026 The 2026 report also includes supplemental insights from Drivewise, a feature in the Allstate mobile app that tracks driving behaviors such as speeding, hard braking, phone use, and nighttime driving. Anthony Thompson, USA Today, 1 July 2026 See All Example Sentences for supplemental

Word History

First Known Use

1605, in the meaning defined at sense 1

Time Traveler
The first known use of supplemental was in 1605

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Cite this Entry

“Supplemental.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supplemental. Accessed 8 Jul. 2026.

Medical Definition

supplemental

adjective
: serving to supplement : supplementary

Legal Definition

supplemental

adjective
: serving to complete or make an addition
supplemental appropriations
specifically : of, relating to, or being a supplemental pleading
supplemental noun
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