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 Even the heartiest of travelers can experience altitude sickness there and may require supplemental oxygen. — Carrie Kahn, NPR, 7 Nov. 2026 All public school educators receive supplemental pay through the property tax, but exactly how much depends on their years spent teaching. — Max Klaver, Miami Herald, 4 Nov. 2026 The administration made the fiscally responsible decision to incorporate these proceeds into its supplemental pension payment as part of a balanced budget that also maintains funding for critical services and neighborhood investments. — Todd Feurer, CBS News, 2 Nov. 2026 But a breakdown by patient age, buried in the supplemental material, shows that for 12 patients who were age 39, the live birth rate was less than 10%. — Megan Molteni, STAT, 2 Nov. 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 idea is that such a highly portable system can be quickly installed on auxiliary vessels, patrol ships, and merchant marine ships.
    — New Atlas, New Atlas, 8 Nov. 2026
  • Among other efforts, the museum recently broke ground on Wonder Works, an auxiliary building where exhibits can be both created and repaired for the museum.
    — Graham Womack, Sacbee.com, 7 Nov. 2026
Definition of auxiliary
Adjective
  • The Mets are running back the second-half team with some supplementary and complementary help.
    — Abbey Mastracco, New York Daily News, 12 Nov. 2026
  • But that claim is difficult to reconcile with the disproportionate representation of certain groups among those deleted from supplementary lists issued for some constituencies after an adjudication process.
    — Asim Ali, Time, 24 Oct. 2026
Definition of supplementary
Adjective
  • The district is expecting additional bid packages related to the work at Neuqua to come to the board for approval in December, per a district memo.
    — Molly Morrow, Chicago Tribune, 13 Nov. 2026
  • Under California law, Newsom has the authority to commute the sentences of people on death row who do not have additional felony charges, which accounts for about 30% of the 548 cases under consideration.
    — Liam Russell, Sacbee.com, 13 Nov. 2026
Definition of additional
Adjective
  • The Mets are running back the second-half team with some supplementary and complementary help.
    — Abbey Mastracco, New York Daily News, 12 Nov. 2026
  • Let’s hand out some position grades for a team that is begging for complementary football ahead of a matchup against the San Francisco 49ers next week.
    — Nick Harris, Fort Worth Star-Telegram, 9 Nov. 2026
Definition of complementary
Adjective
  • Samphire offers an accessory strap intended to ensure good contact between scalp and electrodes, even through thick or curly hair.
    — IEEE Spectrum, IEEE Spectrum, 5 Nov. 2026
  • Fashion designer Rebecca Minkoff has teamed up with model and television personality Grace Ann Nader on a three-piece capsule collection spanning the outerwear, footwear and accessory categories.
    — Jaden Thompson, Footwear News, 2 Nov. 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 dependency theorists took a more pessimistic view of the possibility of economic development in peripheral countries under global capitalism.
    — Encyclopedia Britannica, Encyclopedia Britannica, 27 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 15 Nov. 2026.

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