Polite
WordNet
adjective
(1) Showing regard for others in manners, speech, behavior, etc.
(2) Not rude; marked by satisfactory (or especially minimal) adherence to social usages and sufficient but not noteworthy consideration for others
"Even if he didn't like them he should have been civil"- W.S. Maugham
(3) Marked by refinement in taste and manners
"Cultivated speech"
"Cultured Bostonians"
"Cultured tastes"
"A genteel old lady"
"Polite society"