polite in WordNet English dictionary

1. 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
   civil  polite 
   
2. marked by refinement in taste and manners
   "cultivated speech"; "cultured Bostonians"; "cultured tastes"; "a genteel old lady"; "polite society"
   civilized  civilised  cultivated  cultured  genteel  polite 
   
3. showing regard for others in manners, speech, behavior, etc.
   polite