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
Synonyms & Similar Words
Relevance
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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of supplementary
With their top priority secured, Grisham returning to center field, Paul Goldschmidt recently re-signing for a reserve role, and some supplementary pieces retained or added, Judge ended up happy with the way the Yankees’ offseason concluded.
—
Gary Phillips, New York Daily News, 16 Feb. 2026
New borrowing funded 40% of the 2025 supplementary budget, pushing the national debt to a record high.
—Jeff Kingston, Time, 15 Feb. 2026
Some techniques for reducing carbon dioxide emissions include substituting some of the clinker – the hard residue typically made from limestone – with supplementary materials such as clay, or fly ash and slag from industries.
—Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
Despite these challenges, petalite is emerging as a promising supplementary resource to help diversify lithium supply chains and support long-term energy transition goals.
—Jijo Malayil, Interesting Engineering, 9 Feb. 2026
See All Example Sentences for supplementary
Gary Phillips, New York Daily News, 16 Feb. 2026
New borrowing funded 40% of the 2025 supplementary budget, pushing the national debt to a record high.
—Jeff Kingston, Time, 15 Feb. 2026
Some techniques for reducing carbon dioxide emissions include substituting some of the clinker – the hard residue typically made from limestone – with supplementary materials such as clay, or fly ash and slag from industries.
—Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026
Despite these challenges, petalite is emerging as a promising supplementary resource to help diversify lithium supply chains and support long-term energy transition goals.
—Jijo Malayil, Interesting Engineering, 9 Feb. 2026
See All Example Sentences for supplementary
Recent Examples of Synonyms for supplementary
Adjective
-
Because of the recurring violence, as well as evidence of the sale of alcohol to underage undercover auxiliary police officers, the rink was placed on probation in February 2005 under the city’s Nuisance Abatement law, but reopened shortly after under a curfew.—
Preezy Brown,
VIBE.com,
19 Mar. 2026
-
However, Doel did have to install a separate DC-DC converter to power auxiliary functions like the headlights and windshield wipers.—
Mack DeGeurin,
Popular Science,
11 Mar. 2026
Adjective
-
The classic swim look featured a thin gold chain with a cross pendant and a complementary belly chain.—
Danielle Minnetian,
FOXNews.com,
31 Mar. 2026
-
Today, the brand operates across two complementary product lines.—
Matt Emma,
USA Today,
31 Mar. 2026
Adjective
-
The festival is funded in part by the city of Charlotte, with additional support from the Hispanic Federation.—
Adam Bell
April 2,
Charlotte Observer,
2 Apr. 2026
-
Sachs said additional data about Idahoans would likely have to be collected to fulfill the requirements.—
Angela Palermo,
Idaho Statesman,
2 Apr. 2026
Adjective
-
But Zelenskyy emphasized the partnership must be reciprocal.—
Matt Finn , Sophia Compton,
FOXNews.com,
28 Mar. 2026
-
That reciprocal vulnerability is the engine of discretionary effort.—
Charles Edward Gehrke,
Fortune,
28 Mar. 2026
Adjective
-
The supplemental budget was engrossed into law on March 18.—
Tim Dunn,
Boston Herald,
30 Mar. 2026
-
Many families customize the Haggadah with supplemental songs and readings on a particular theme, or written by the participants themselves.—
Peter Smith,
Los Angeles Times,
30 Mar. 2026
Adjective
-
The bill also loosens rules around building increasingly popular accessory dwelling units (ADUs) — such as granny flats, in-law suites or backyard cottages — alongside existing structures.—
Bob Woods,
CNBC,
29 Mar. 2026
-
About half of those units have come from accessory dwelling units.—
Luke Harold,
San Diego Union-Tribune,
28 Mar. 2026
Cite this Entry
“Supplementary.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supplementary. Accessed 3 Apr. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
