supplemental

adjective

ˌsə-plə-ˈmen-tᵊl How to pronounce supplemental (audio)
Definition of supplementalnext
1
as in auxiliary
available to supply something extra when needed the new program will provide supplemental health insurance to thousands of workers

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Antonyms & Near Antonyms
2
as in supplementary
related to each other in such a way that one completes the other an astronomer who regards science and religion not as antithetical but as supplemental belief systems

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of supplemental But experts told Healthcare Brew that payers are increasing cost-sharing for enrollees, shifting them into narrower networks, and cutting supplemental benefits in response to a spike in utilization and medical costs over the last couple years. — Caroline Catherman, Fortune, 20 Oct. 2026 There are also additional supplemental plans like Medigap to help with out-of-pocket costs, but there's an additional monthly premium. — Jennifer Bisram, CBS News, 19 Oct. 2026 High-profile essays like hers are reframing lobular carcinoma from clinical footnote to mainstream concern, and that reframing tends to drive demand for supplemental screening. — Samantha Agate, Kansas City Star, 14 Oct. 2026 Douthat himself describes this project as speculative historical fiction, and the data-dumping, supplemental world-building documents are certainly dense with history and archangels. — James Folta, Literary Hub, 14 Oct. 2026 See All Example Sentences for supplemental
Recent Examples of Synonyms for supplemental
  1. auxiliary
  2. supplementary
  3. additional
  4. complementary
  5. accessory
  6. peripheral
Adjective
  • The original downtown location serves as an auxiliary office supporting the apparel and kids divisions, but staff there will soon relocate to the new campus.
    — Vicki M. Young, Footwear News, 27 Oct. 2026
  • The proof uses an auxiliary partial differential equation to establish Sogge’s local smoothing for waves in every spatial dimension at least two.
    — Richard Lawler, The Verge, 26 Oct. 2026
Definition of auxiliary
Adjective
  • Like other clubs, Gollancz expanded its service to additional, supplementary and educational texts, all optional.
    — Literary Hub, Literary Hub, 20 Oct. 2026
  • The space is warm and lo-fi—Polaroids of friends and a handwritten lineup of the day’s specials (which can be added at a supplementary cost) are stuck to a noticeboard—but the food is sharp and assured.
    — Helen Rosner, New Yorker, 11 Oct. 2026
Definition of supplementary
Adjective
  • The governor and secretary of state’s offices did not provide any additional information about whether election officials elsewhere in California had been subpoenaed.
    — Andrew Graham, Sacbee.com, 30 Oct. 2026
  • Investments include additive manufacturing equipment, precision machining capabilities, and additional production facilities.
    — Aamir Khollam, Interesting Engineering, 30 Oct. 2026
Definition of additional
Adjective
  • That might mean developing complementary devices, encouraging upgrades, or introducing subscription services that generate revenue beyond the initial hardware sale.
    — Amy O’Brien, Vogue, 27 Oct. 2026
  • Last week The Lede Company, acquired Aisle 8 as part of a wider trend of communications and events agencies clubbing together to offer a variety of services across continents, or buying complementary businesses in order to broaden their reach.
    — Samantha Conti, Footwear News, 26 Oct. 2026
Definition of complementary
Adjective
  • The study looked at converting existing single-family homes into multi-unit residences, standalone accessory dwelling units and multi-unit buildings.
    — Cam'ron Hardy, Chicago Tribune, 18 Oct. 2026
  • These superficial veins are not critical to circulation — they’re considered accessory veins, which the body uses mainly for volume storage and temperature regulation, Stoughton said.
    — Erica Sloan, Washington Post, 10 Oct. 2026
Definition of accessory
Adjective
  • When viewers focus on one gear, the other, as seen through peripheral vision, appears to spin faster — though both are moving at the same speed.
    — Margaret Hetherman, Washington Post, 27 Oct. 2026
  • But because of my peripheral association with the Exorcist reissue, people are now taking my phone calls.
    — David Fear, Rolling Stone, 18 Oct. 2026
Definition of peripheral

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supplement
supplemental
supplementary
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Cite this Entry

“Supplemental.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supplemental. Accessed 31 Oct. 2026.

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