adj.
1.acting as or providing a complement (something that completes the whole)
2.of words or propositions so related that each is the negation of the other
3.of or relating to or suggestive of complementation complementary n.
1.either one of two chromatic colors that when mixed together give white (in the case of lights) or gray (in the case of pigments)
Idiom of the Day
keep one's opinions to oneself
to not give your opinion about something (especially when you disagree with others)
I try to keep my opinions to myself when I talk to my father about the local government.