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
at last
finally, after a long time
I waited all morning for my friend's call until at last it came.