[ kom-pluh-men-tuh-ree, -tree ]
/ ˌkɒm pləˈmɛn tə ri, -tri /
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forming a complement; completing.
complementing each other.
noun, plural com·ple·men·ta·ries.
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Origin of complementary
First recorded in 1590–1600; complement + -ary
OTHER WORDS FROM complementarycom·ple·men·ta·ri·ness, nounun·com·ple·men·ta·ry, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use complementary in a sentence
Not, we must again emphasize, not in a hermaphroditic personality, but in two perfect complementaries—mates; not one but a pair.
In the same way mix the two complementaries yellow and blue to produce a gray; mix red and green in the same way.The Mind and Its Education|George Herbert Betts
Cosmic reaction has set in, and union between complementaries is the result.
Everything in nature is manifested to us by means of light and its complementaries, reflection and shadow.The Mind of the Artist|Various
The greatest possible contrast is that of the complementaries.The Painter in Oil|Daniel Burleigh Parkhurst
British Dictionary definitions for complementary
/ (ˌkɒmplɪˈmɛntərɪ, -trɪ) /
acting as or forming a complement; completing
forming a satisfactory or balanced whole
forming a mathematical complementsine and cosine are complementary functions
maths logic (of a pair of sets, etc) mutually exclusive and exhaustive, each being the complement of the other
(of genes) producing an effect in association with other genes
involving or using the treatments and techniques of complementary medicine
Derived forms of complementarycomplementarily or complementally, adverbcomplementariness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012