noun
1.
Synonyms: order 11, appositeness, appropriateness, aptness, expediency, fitness, meetness, rightness, suitability, suitableness
2.
Synonyms: decorum 1, decency, dignity, etiquette, seemliness
Antonyms: impropriety
3.
Synonyms: order 7, correctitude, correctness, decorousness, decorum, orderliness, properness, seemliness
Antonyms: impropriety
4.
proprieties plural
Synonyms: manner 5, amenities, civilities, decorum(s), etiquette, mores