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 The supplementary motor area helps organise their sequence, and the primary motor cortex sends commands to the muscles of the trunk, shoulder, arm and wrist. — Michelle Spear, Scientific American, 11 July 2026 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 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
  • Higher education institutions received revenue through tuition and fees, appropriations, grants & contracts, auxiliary enterprises, gifts and other.
    — Tatiana Sataua, Fortune, 31 Aug. 2026
  • The electricity harvested from the vehicle skin can run onboard systems, recharge battery banks, and reduce the fuel needed for auxiliary generators.
    — Aman Tripathi, Interesting Engineering, 29 Aug. 2026
Definition of auxiliary
Adjective
  • Depending on the formula, those complementary ingredients may also target more familiar skin concerns, including skin hydration, barrier support, fine lines, and uneven texture.
    — Sheryl George, Glamour, 2 Sep. 2026
  • The negotiators of the original pact did not need to contemplate how the three countries would implement complementary subsidies, investment restrictions, or export controls, as such policies were not then in vogue.
    — Chad P. Bown, Foreign Affairs, 1 Sep. 2026
Definition of complementary
Adjective
  • The jury did convict Rosado of driving under the influence and he was sentenced to five years in prison, but Rosado has been behind bars on a $2 million bail since 2021 so won't have to serve any additional time.
    — Amanda Lee Myers, USA Today, 4 Sep. 2026
  • According to The New York Times, she was sentenced to life in prison, with two additional 30-year sentences to run consecutively with her life term.
    — Jordana Comiter, PEOPLE, 4 Sep. 2026
Definition of additional
Adjective
  • That reciprocal impact, according to Canadian officials, will purposefully target key sectors and states — like Michigan — with particular economic and political importance in the United States.
    — Grant Schwab, Chicago Tribune, 31 Aug. 2026
  • Autistic people of all genders often struggle with nuances of social communication like decoding nonverbal cues, identifying shifts in tone or asking reciprocal questions.
    — Los Angeles Times, Los Angeles Times, 26 Aug. 2026
Definition of reciprocal
Adjective
  • Always feel the soil to determine whether supplemental water is necessary.
    — Heather Zidack, Hartford Courant, 23 Aug. 2026
  • Review details about supplemental benefits, such as dental, vision and hearing care.
    — Bob Carlson, Forbes.com, 21 Aug. 2026
Definition of supplemental
Adjective
  • Each vacation rental unit can only have one agreement at a time, which is intended for properties that may have an accessory dwelling unit, Cortez said.
    — Hema Sivanandam, Mercury News, 20 Aug. 2026
  • Colorado also legalized accessory dwelling units statewide in 2024, letting homeowners build small backyard or garage apartments without needing a special hearing or approval.
    — Solomon Greene, The Conversation, 14 Aug. 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 5 Sep. 2026.

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