supplementary

adjective

ˌsə-plə-ˈmen-tə-rē How to pronounce supplementary (audio)
Definition of supplementarynext
1
as in auxiliary
available to supply something extra when needed the teacher's edition of the textbook comes with a lot of supplementary material

Synonyms & Similar Words

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Antonyms & Near Antonyms
2
as in complementary
related to each other in such a way that one completes the other regards theology and philosophy as supplementary fields of study

Synonyms & Similar Words

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 supplementary With two satellites at supplementary inclinations, the Newtonian perturbations are equal and opposite in the two orbital planes and cancel each other out. — Jacek Krywko, ArsTechnica, 10 July 2026 The LLCs contested, arguing the alter ego finding was inapplicable and Illinois law didn't permit such piercing in supplementary proceedings. — Jay Adkisson, Forbes.com, 7 July 2026 Poetry and Original Spoken Word are considered supplementary events, Frazier said. — Evy Lewis, Chicago Tribune, 29 June 2026 In some parts of Hwange, natural seeps and seasonal watering holes provide supplementary water, while Wilderness helps pump water to artificial watering holes in the southeastern region of the park. — Lydia Mansel, Travel + Leisure, 28 June 2026 See All Example Sentences for supplementary
Recent Examples of Synonyms for supplementary
  1. auxiliary
  2. complementary
  3. additional
  4. reciprocal
  5. supplemental
  6. accessory
Adjective
  • Other smaller ethnic auxiliary groups support the government.
    — ABC News, ABC News, 31 July 2026
  • And, earlier in the summer, the heat forced them to cut down their outside play time, says Drew Mackay, the director of auxiliary and summer programs at Beauvoir School.
    — Ava Berger, NPR, 26 July 2026
Definition of auxiliary
Adjective
  • Dotson was a first-round pick in 2022, only eight picks behind London, and after two promising years with the Commanders, he was traded to the Eagles and forced into a complementary role.
    — Tyler Estep, AJC.com, 29 July 2026
  • Second, Hyman and Gordon—and their companies—are complementary in so many ways.
    — Emma Hinchliffe, Fortune, 29 July 2026
Definition of complementary
Adjective
  • Zoko urged the board to instead approve the budget proposed by CPS chief executive officer Macquline King, and continue lobbying state lawmakers for additional funding.
    — Todd Feurer, CBS News, 31 July 2026
  • The 2024 first-round pick has started to heat up with additional physicality.
    — Mike Kaye July 31, Charlotte Observer, 31 July 2026
Definition of additional
Adjective
  • Speaking on July 23, Unification Minister Chung Dong-young said Seoul is now aiming to first freeze North Korea's current nuclear program, offering reciprocal concessions for interim steps short of full disarmament.
    — Se Eun Gong, NPR, 3 Aug. 2026
  • World of Hyatt Teams Up with Aeroplan Air Canada’s frequent flyer program Aeroplan is the newest partner of World of Hyatt, giving members of either loyalty program the chance to earn benefits or reciprocal elite status perks.
    — Ramsey Qubein, Forbes.com, 1 Aug. 2026
Definition of reciprocal
Adjective
  • Attracted by low premiums and supplemental benefits, Medicare Advantage now enrolls more than 54% of the Medicare-eligible population.
    — Joshua P. Cohen, Forbes.com, 1 Aug. 2026
  • Providing supplemental irrigation during dry periods to reduce drought stress.
    — Callie Zanandrie, CBS News, 31 July 2026
Definition of supplemental
Adjective
  • Of the 64 homes, 52 will be single-family residences for sale and 12 will be accessory dwelling units.
    — George Avalos, Mercury News, 2 July 2026
  • Stellantis runs Mopar as a full business — more than 1,000 accessory parts, dozens of partners, Jeep Performance Parts, and a growing push to install at the factory.
    — Sarwant Singh, Forbes.com, 2 July 2026
Definition of accessory

Browse Nearby Words

supplemental
supplementary
supplementation
See all Nearby Words

Cite this Entry

“Supplementary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supplementary. Accessed 6 Aug. 2026.

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More from Merriam-Webster on supplementary

Nglish: Translation of supplementary for Spanish Speakers

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