well mannered 
adjective
Having or showing good manners; polite: they were well mannered and eager to please...
- He's polite, well-mannered and hardly ever swears.
- He was an exceptionally well-mannered and polite lad and a very talented cricketer.
- It is a very polite and well-mannered affair, very British, very orderly.
Synonyms
polite, courteous, well behaved, civil, gentlemanly, ladylike, genteel, decorous, respectful, refined, polished, civilized, cultivated, gracious, chivalrous, urbane, well bred, well brought up
dated mannerly
- get one's feet under the table
- get one's feet wet
- get one's fingers burned/burnt (or burn one's fingers)
- get one's hands dirty (or dirty one's hands)
- get one's head down
- get one's head round (or around)
- get one's hooks into
- get one's jollies
- get one's kit off
- get one's knickers in a twist
- get one's leg over
- get one's nose in front
- ribophorin
- ribose
- riboside
- ribosomal
- ribosomal RNA
- ribosome
- ribostamycin
- ribosyl
- ribozyme
- rib-ploughing
- rib-plowing
- rib-poking
- rib-rand