Decorous means correct and dignified in behaviour. A decorous silence, decorous applause.
It describes fitting the occasion rather than being good, which is a different thing. A decorous funeral is one where nobody does anything anybody will remember.
1adjectivedecorousCorrect and dignified in behaviour.
“The party was decorous until about eleven.”
decorous is a quality.
Latin decorus, seemly, from decor, grace; the same root gives decorum and decorate.
Proto-Indo-European
*deḱ-
English, today
decorous
From the following:
Etymology from Wiktionary, CC BY-SA