supplementary
adjective
sup·ple·men·ta·ry
ˌsə-plə-ˈmen-tə-rē 
-ˈmen-trē
1
: added or serving as a supplement : additional
supplementary reading
2
: being or relating to a supplement (see supplement entry 1 sense 3) or a supplementary angle
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
Programs with major budgets in football and basketball may have to face interesting questions for supplementary sports.
—
Cory Mull, Forbes.com, 27 June 2025
Santa Ynez Reservoir’s primary role is to provide supplementary supply during periods of high water use, according to the DWP.
—Ian James, Los Angeles Times, 27 June 2025
The Fed now wants the enhanced supplementary leverage ratio to be applied on a bank-by-bank basis, depending on each firm's mix of assets.
—Morgan Chittum, CNBC, 26 June 2025
The final agreements will be tucked into a supplementary measure amending the main budget bill.
—George Skelton, Mercury News, 25 June 2025
See All Example Sentences for supplementary
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Cory Mull, Forbes.com, 27 June 2025
Santa Ynez Reservoir’s primary role is to provide supplementary supply during periods of high water use, according to the DWP.
—Ian James, Los Angeles Times, 27 June 2025
The Fed now wants the enhanced supplementary leverage ratio to be applied on a bank-by-bank basis, depending on each firm's mix of assets.
—Morgan Chittum, CNBC, 26 June 2025
The final agreements will be tucked into a supplementary measure amending the main budget bill.
—George Skelton, Mercury News, 25 June 2025
See All Example Sentences for supplementary
Cite this Entry
“Supplementary.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supplementary. Accessed 15 Jul. 2025.
Copy CitationKids Definition
supplementary
adjective
sup·ple·men·ta·ry
ˌsəp-lə-ˈment-ə-rē
-ˈmen-trē
1
: added as a supplement : additional
2
: being or relating to a supplement or a supplementary angle
Medical Definition
supplementary
adjective
sup·ple·men·ta·ry
ˌsəp-lə-ˈment-ə-rē, -ˈmen-trē
: added or serving as a supplement
supplementary vitamins
Legal Definition
supplementary
adjective
sup·ple·men·ta·ry
ˌsə-plə-ˈmen-tə-rē, -trē
: added or serving as a supplement
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