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

In a July 12 Instagram post, Hewitt marked her daughter's 7-month milestone by posting a photo of them in complementary pink gingham outfits at the park. — Kimi Robinson, USA Today, 2 Aug. 2026

Cusick and Kretschmann offer complementary chords of variable petulance and insecurity, as newcomer Cuoso ably negotiates her character’s shifting ambiguities. — Dennis Harvey, Variety, 31 July 2026

Dotson was a first-round pick in 2022, only eight picks behind London, and after two promising years with the Commanders, he was traded to the Eagles and forced into a complementary role. — Tyler Estep, AJC.com, 29 July 2026

Second, Hyman and Gordon—and their companies—are complementary in so many ways. — Emma Hinchliffe, Fortune, 29 July 2026