WordNet sense 1 (marked by refinement in taste and manners):

cultivated, cultured, genteel, polite, civilised

WordNet sense 2 ((used of persons and their behavior) cultivated and genteel):

refined

WordNet sense 3 (showing evidence of moral and intellectual advancement):

humane

WordNet sense 4 (of or in a condition of social order):

civil

WordNet sense 5 ((of societies) highly developed especially in technology or industry):

advanced