1. A dignified and restrained manner of bearing oneself in formal or official settings; formal propriety and decorum
The diplomat maintained compostura formal throughout the tense negotiations.
O diplomata manteve compostura formal durante as negociações tensas.
2. Formal restraint or reserve in behavior and appearance, especially in social or professional contexts
She approached the ceremony with compostura formal and grace.
Ela se aproximou da cerimônia com compostura formal e graça.