sup·​ple·​men·​ta·​ry | \ ˌsə-plə-ˈmen-tə-rē How to pronounce supplementary (audio) , -ˈmen-trē \

Definition of supplementary

1 : added or serving as a supplement : additional supplementary reading
2 : being or relating to a supplement or a supplementary angle

Synonyms & Antonyms for supplementary



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Examples of supplementary in a Sentence

a list of supplementary material for the class the teacher's edition of the textbook comes with a lot of supplementary material
Recent Examples on the Web While total revenue can also include supplementary income sources, sales typically make up the bulk of it. Colin Lodewick, Fortune, 22 June 2022 Others have used alt text as a place to hide jokes, supplementary information or alternative captions from the main timeline. Katie Deighton, WSJ, 15 July 2022 That leaves Dish with a smidgen of long-range, low-capacity n71 and some supplementary n66. Sascha Segan, PCMAG, 12 July 2022 Plug-in hybrids—vehicles with a battery motor and a supplementary gas engine—will also be permitted if manufacturers prove the hybrids meet certain emissions restrictions. Eamon Barrett, Fortune, 6 July 2022 For them, the twin crunch of rising living costs and falling stock returns sounds an especially urgent alarm, straining their budgets while choking off supplementary funds from their portfolios, experts told ABC News. Max Zahn, ABC News, 24 June 2022 To address this concern, a supplementary provision was added to the bill requiring that a review be conducted within three years to assess the impact on free speech. Patrick Brzeski, The Hollywood Reporter, 15 June 2022 Though the deadline to submit supplementary evidence was to be today, on Friday the STB extended the deadline by 30 days, to July 13. Margaret Kates |, al, 13 June 2022 An engaged candidate will recap the discussion, offer insights and share their approach or fit to the role and any supplementary information that may not have been shared in the interview process. Expert Panel®, Forbes, 1 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'supplementary.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of supplementary

1667, in the meaning defined at sense 1

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Time Traveler for supplementary

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The first known use of supplementary was in 1667

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Dictionary Entries Near supplementary



supplementary angle

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Statistics for supplementary

Last Updated

31 Jul 2022

Cite this Entry

“Supplementary.” Dictionary, Merriam-Webster, Accessed 19 Aug. 2022.

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More Definitions for supplementary


sup·​ple·​men·​ta·​ry | \ ˌsə-plə-ˈmen-tə-rē How to pronounce supplementary (audio) \

Kids Definition of supplementary

: added to something else : additional supplementary income


sup·​ple·​men·​ta·​ry | \ ˌsəp-lə-ˈment-ə-rē, -ˈmen-trē How to pronounce supplementary (audio) \

Medical Definition of supplementary

: added or serving as a supplement supplementary vitamins


sup·​ple·​men·​ta·​ry | \ ˌsə-plə-ˈmen-tə-rē, -trē How to pronounce supplementary (audio) \

Legal Definition of supplementary

: added or serving as a supplement

More from Merriam-Webster on supplementary

Nglish: Translation of supplementary for Spanish Speakers

Britannica English: Translation of supplementary for Arabic Speakers


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