If something is complementary, then it somehow completes or enhances the qualities of something else. If your beautiful voice is completely complementary to your brother's song writing skills, you should form a family band!

You’ve probably heard of “complementary colors,” colors that are opposite in hue on the color wheel but actually go well together. When combined, they make a harmonious palette. People’s personalities can also be complementary, as can certain food pairings. But be careful not to confuse this adjective with the closely spelled complimentary, which means “supplied free of charge.”

Definitions of complementary
  1. adjective
    acting as or providing a complement (something that completes the whole)
    synonyms: complemental, completing
    characterized or produced by addition
  2. noun
    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
    synonyms: complementary color
  3. adjective
    of words or propositions so related that each is the negation of the other
    “`male' and `female' are complementary terms”
    of words: having opposite meanings
  4. adjective
    (of angles) equaling 90 degrees when added together
Word Family

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