1. combining in such a way as to enhance or emphasize the qualities of each other or another
2. provided free of charge as a courtesy or favor
3. relating to colors that are opposite each other on the color wheel
Usage: art; design

Examples

• The wine and cheese were complementary flavors that enhanced each other.
• Their complementary skills made them an excellent team.
• The hotel offered complementary breakfast to all guests.
• Red and green are complementary colors.
• The therapies work in a complementary way to treat the condition.
• She received complementary tickets to the concert.
• The complementary angles add up to 90 degrees.