Used both attributively and predicatively to describe someone or something as having good manners.
Translations
Despite their young age, the students were impeccably well-mannered during the ceremony.
Malgré leur jeune âge, les élèves étaient impeccablement bien élevés pendant la cérémonie.
The children were well-mannered and listened quietly to the teacher.
Les enfants étaient polis et écoutaient en silence la professeure.
courtoisPlus soutenu; convient bien à un registre formel. Definitions
Having good manners; polite and courteous. Despite their young age, the students were impeccably well-mannered during the ceremony.