decorousness

noun decorousness

• dignity — bearing, conduct, or speech indicative of self-respect or appreciation of the formality or gravity of an occasion or situation.
• modesty — the quality of being modest; freedom from vanity, boastfulness, etc.
• propriety — conformity to established standards of good or proper behavior or manners.
• decorum — Decorum is behaviour that people consider to be correct, polite, and respectable.
• civility — politeness or courtesy, esp when formal