Synonyms of complementary

complementary

adjective

ˌkäm-plə-ˈmen-t(ə-)rē 

as in supplementary

related to each other in such a way that one completes the other

the complementary contributions of the cooking and cleanup committees were essential to the success of the church barbecue

Synonyms & Similar Words

• supplementary
• reciprocal
• mutual
• supplemental
• collective
• combined
• correlative
• cooperative
• communal
• joint
• symbiotic
• common
• shared
• conjoint
• united

Antonyms & Near Antonyms

• nonreciprocal
• noncomplementary

Example Sentences

Recent Examples of complementary

The two are always dressed to balance each other onscreen, as in complementary lavender and yellow, or that aforementioned ball’s gold and silver. — Lexy Perez, HollywoodReporter, 22 Oct. 2026

Even as new equipment and materials transformed the room, the principle of planning storage, appliances, and work surfaces as a continuous, complementary whole endured. — Tara Anne Dalbow, Architectural Digest, 21 Oct. 2026

One Media Capital Fund was created to bridge this gap, by providing indie companies with financing tools tailored to the needs of the production sector and complementary to the country’s traditional bank credit options. — Nick Vivarelli, Variety, 20 Oct. 2026

This data suggests that pro-climate messages could appeal to swing voters most strongly if climate policies are seen as complementary to affordability. — Geoffrey Henderson, The Conversation, 19 Oct. 2026