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 tie-waist is made to look like the arms of a button-down shirt in a complementary green stripe, which makes the piece look both styled and playful without having to do any of the work yourself. — ABC News, 25 July 2026

This term refers to using two or more peptides simultaneously to achieve different or complementary effects. — Maggie Ryan, Flow Space, 24 July 2026

What at one moment are antitheses come to be felt as complementary situations. — Literary Hub, 24 July 2026

SpaceX has also been pitching Starlink Mobile to potential carrier partners as a complementary service. — Michael Kan, PC Magazine, 23 July 2026