1. A day characterized by sadness, gloom, or a pensive, reflective mood; a day when one feels sorrowful or emotionally withdrawn
It was a melancholy day when dark clouds covered the sky and rain fell softly.
Era um dia melancólico quando nuvens escuras cobriam o céu e chuva caía suavemente.
2. A day marked by introspection, nostalgia, or a sense of longing for something lost or absent
The anniversary of her departure turned into a melancholy day full of memories.
O aniversário de sua partida transformou-se em um dia melancólico cheio de memórias.