adjective

decorous

DEK-er-uhs/ˈdekərəs/

Proper, polite, and restrained in behavior or appearance.

The guests maintain a decorous silence during the award ceremony.

Formally dressed guests sit politely at a quiet ceremony, composed posture and respectful attention, tasteful restrained scene.

Etymology

Latin decorus described what was fitting or seemly. Applied to conduct, that idea of suitability became formal politeness and propriety: decorous behavior is behavior appropriate to the occasion.

In context

ThinkTech Hawaii10:57

they petitioned they remonstrated they did so in a decorous respectful and loyal manner

'The Meaning of July Fourth for the Negro' by Frederick Douglass (Navigating The Journey)

More examples

She chooses a decorous dress for the formal dinner.
Their disagreement remains decorous, with neither person raising a voice.
The audience offers decorous applause rather than loud cheers.

Forms

decorous · more decorous · most decorous

decorously adverb — In a proper, polite, restrained manner.

decorousness noun — The quality of being proper and restrained.

Similar words

proper: Emphasizes conformity to accepted standards, not necessarily restraint.
polite: Emphasizes courtesy toward others rather than restrained behavior or appearance.
dignified: Emphasizes composed bearing that earns respect, rather than social correctness.