Genteel, polite (7)
I believe the answer is:
refined
I believe this is a double definition.
'genteel' is the first definition.
(similar in meaning)
'polite' is the second definition.
(similar in meaning)
(Other definitions for refined that I've seen before include "Tasteful; genteel" , "Urbane" , "Not coarse" , "Free from vulgarity" , "Purified, oil say" .)