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
The theoretical goal is to achieve extremely high supersonic speeds, requiring only a small onboard booster rocket to complete orbital insertion for payloads such as satellites or supplementary equipment (it is not designed for human passengers).
—
Mrigakshi Dixit, Interesting Engineering, 24 Nov. 2025
Takaichi's government must compile a supplementary budget and gain approval by the parliament by the end of this year to fund the package.
—Arkansas Online, 22 Nov. 2025
If Giolito declines, the Red Sox would receive a pick that would come in a supplementary round between the fourth and fifth in next year's draft.
—Jon Vankin, MSNBC Newsweek, 31 Oct. 2025
But for those like Lapre, these services aren’t just supplementary.
—Madison Dapcevich, Outside, 30 Oct. 2025
See All Example Sentences for supplementary
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Mrigakshi Dixit, Interesting Engineering, 24 Nov. 2025
Takaichi's government must compile a supplementary budget and gain approval by the parliament by the end of this year to fund the package.
—Arkansas Online, 22 Nov. 2025
If Giolito declines, the Red Sox would receive a pick that would come in a supplementary round between the fourth and fifth in next year's draft.
—Jon Vankin, MSNBC Newsweek, 31 Oct. 2025
But for those like Lapre, these services aren’t just supplementary.
—Madison Dapcevich, Outside, 30 Oct. 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 2 Dec. 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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