1. to show or exhibit mature behavior, judgment, or emotional development
She demonstrated maturity by handling the difficult situation calmly and responsibly.
Ela demonstrou maturidade ao lidar com a situação difícil de forma calma e responsável.
2. to exhibit the qualities associated with adulthood and emotional intelligence
The young athlete demonstrated maturity by accepting criticism constructively.
O jovem atleta demonstrou maturidade ao aceitar críticas de forma construtiva.