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
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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
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of supplementary
The researchers also completed two supplementary analyses to account for variables like students who lived in different communities – either with or without fluoride.
—
New Atlas, 30 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
Recent Examples of Synonyms for supplementary
Adjective
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The construction of the West Wing, to house the president's Oval Office and staff, and the East Wing, to house the first lady's team and other auxiliary offices, was expertly planned to not interfere with the optics of the standalone Executive Residence.—
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Then, a simple water-splitting reaction at the auxiliary electrode generates hydroxide, which combines with the lithium to produce lithium hydroxide.—
Adjective
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So fat transfer is absolutely invaluable, complementary to any facial aesthetic surgery, but also more of a structural solution on its own, rather than just a cosmetic add on.—
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Each headliner is supported by a complementary, not-quite-as-famous act.—
Adjective
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The shooting comes amid heightened tensions between federal immigration authorities and Minneapolis officials, after DHS deployed thousands of additional officers to the area in recent days, sparking protests and backlash from city leaders.—
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Last session, lawmakers nearly passed a $3 million bill to help school districts educate students who need additional services, like a full-time nurse or an ASL interpreter, that can cost more than $50,000.—
Adjective
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Nothing wrong with a little fantasy, but this year’s astrology asks us to stop romanticizing potential and start paying attention to what feels genuine, reciprocal and enduring.—
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But no one was prepared for the kind of reciprocal tariffs that were announced on April 2.—
Adjective
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The federal government primarily finances supplemental food benefits, but the state’s share is determined, in part, by its management, as indicated by its rate of error when determining people’s eligibility.—
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These include terminating or suspending contracts with private providers and slashing supplemental aid previously available to foster families.—
Adjective
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States governed by both Democrats and Republicans — including Florida, Montana and Washington — have enacted reforms like eliminating minimum lot sizes, permitting accessory dwelling units and limiting on-site parking spaces.—
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The draft of the law states that no accessory dwelling units, junior or otherwise, could be rented out.—
Cite this Entry
“Supplementary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supplementary. Accessed 13 Jan. 2026.
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