Complimentary vs Complementary

Complimentary

Adjective
1. Expressing a compliment; praising or approving.
2. Given or supplied free of charge.

Synonyms
flattering

 

Complementary

Adjective
1. Completing; forming a complement.
2. Of two or more different things Combining in such a way as to enhance or emphasize each other’s qualities.

Synonyms
supplementary – additional – further – expletive