Synonyms of proprieties

2 Syllables
meetness, rightness, fitness, aptness, custom, order, concord
3 Syllables
pleasantness, congruity, properness, usance, correctness, seemliness, harmony, decorum, justice
4 Syllables
expedience, becomingness, habitude, convenience, accordance, rectitude, morality, consonance, agreeableness
5 Syllables
legitimacy, suitability, ethicality, appositeness, correspondence
6 Syllables
compatibility, advisability, respectability
7 Syllables
recommendability