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
This makes for great supplementary income as a side hustle while working full-time, or in between jobs.
—
Rachel Wells, Forbes.com, 14 Aug. 2025
Connecticut could face close to $180 million in annual extra costs to its supplementary nutrition and food stamps program within the next five years, according to a very preliminary analysis of recent federal budget cuts by Gov. Ned Lamont’s administration.
—Keith M. Phaneuf, Hartford Courant, 11 Aug. 2025
The final bit of cloud identification involves supplementary features that are attached to or merged with the cloud.
—Noel Kirkpatrick, Treehugger, 7 Aug. 2025
The welfare package was introduced under the collective supplementary agreement signed in July 2022 and expired on Dec. 31, 2024.
—Martino Carrera, Footwear News, 5 Aug. 2025
See All Example Sentences for supplementary
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Rachel Wells, Forbes.com, 14 Aug. 2025
Connecticut could face close to $180 million in annual extra costs to its supplementary nutrition and food stamps program within the next five years, according to a very preliminary analysis of recent federal budget cuts by Gov. Ned Lamont’s administration.
—Keith M. Phaneuf, Hartford Courant, 11 Aug. 2025
The final bit of cloud identification involves supplementary features that are attached to or merged with the cloud.
—Noel Kirkpatrick, Treehugger, 7 Aug. 2025
The welfare package was introduced under the collective supplementary agreement signed in July 2022 and expired on Dec. 31, 2024.
—Martino Carrera, Footwear News, 5 Aug. 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 9 Sep. 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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