1) Accomplished 2) Ceremonious 3) Complementary 4) Completing 5) Complimentary 6) Inessential 7) Unessential 1) Complementary 2) Completing 3) Inessential 4) Unessential 
• (a.) Supplying, or tending to supply, a deficiency; fully completing. • (a.) Complimentary; courteous.
Com`ple·men'tal adjective 1. Supplying, or tending to supply, a deficiency; fully completing. ' Complemental ceremony.' Prynne. 2. Complimentary; courteous. [ Obsolete] Shak. Complemental air (Physiol.) , 
[adj] - acting as or providing a complement (something that completes the whole)
complementary adjective acting as or providing a complement (something that completes the whole)
complementary; completing. · · accomplished. · ceremonious. · complimentary.