characterized by courtesy and gracious good manners; "if a man be gracious and courteous to strangers it shows he is a citizen of the world"-Francis Bacon
exhibiting courtesy and politeness; "a nice gesture"
used of plants; capable of cross-fertilization or of being grafted
suitable to your needs or similar to your nature; "a congenial atmosphere to work in"; "two congenial spirits united...by mutual confidence and reciprocal virtues"- T.L.Peacock