the done thing (noun) propriety: good manners
Sinonime: accepted conduct,
amenities, breeding, civilities, correctness,
courtesy, decency,
decorum,
delicacy,
dignity,
etiquette, good behavior, good form,
modesty,
mores*, niceties, politeness, politesse,
protocol, punctilio,
rectitude,
refinement, respectability, rules of conduct, seemliness, social conventions, social grace, the done thing
Antonime: bad manners, impropriety, misbehavior, misconduct