complementary

nouns

either one of two chromatic colors that when mixed together give white (in the case of lights) or grey (in the case of pigments)

"yellow and blue are complementaries"

of words or propositions so related that each is the negation of the other

"`male' and `female' are complementary terms"

complementary

is similar to

of words: having opposite meanings

acting as or providing a complement (something that completes the whole)

is derived from

is derived from