complementary
definition: acting as or providing a complement (something that completes the whole)
example:
speech part: adjective
synonyms:
complemental
definition: of words or propositions so related that each is the negation of the other
example: `male' and `female' are complementary terms
speech part: adjective
synonyms:
definition: either one of two chromatic colors that when mixed together give white (in the case of lights) or grey (in the case of pigments)
example:
speech part: noun
synonyms:
complementary color