propriety
1 appropriateness, aptness, becomingness, correctness, fitness, rightness, seemliness, suitableness
2 breeding, courtesy, decency, decorum, delicacy, etiquette, good form, good manners, manners, modesty, politeness, protocol, punctilio, rectitude, refinement, respectability, seemliness
3 the proprieties accepted conduct
2 bad form, bad manners, immodesty, impoliteness, indecency, indecorum, indelicacy, vulgarity