complementary
Proposed by a contributor, not yet supported by evidence.
Also seen as: complementaries
Sense 1
Acting as a complement; making up a whole with something else.
Adjective
Examples
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Of the specific pairings of the bases in DNA and RNA.
Adjective
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
A complementary colour.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 4
An angle which adds with another to equal 90 degrees.
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “complementary” mean?
Acting as a complement; making up a whole with something else.
Is “complementary” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.