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 progression in understanding came with a complementary trust and a movement away from the supernatural, one that might be reversing today. — T.m. Brown, CNN Money, 16 Aug. 2026

In his short tenure as owner, the team said goodbye to LeBron James, gave Austin Reaves a long contract extension, traded for impact center Walker Kessler and signed several complementary players. — Steve Henson, Los Angeles Times, 15 Aug. 2026

Gordon explained that the platform represents the team’s response to the Army’s Project Sustainment requirements and combines a wide range of complementary technologies into a single capability. — Bojan Stojkovski, Interesting Engineering, 15 Aug. 2026

Pull complementary but not purely primary tones; for example, in the Rajans’ living room, the caramelly orange sofa plays off the cerulean tiles. — Laura Fenton, Midwest Living, 14 Aug. 2026