1. A day lacking in variety, interest, or excitement; a day characterized by repetitive or tedious activities
It was just another monotonous day at the office with the same routine tasks.
Foi apenas mais um dia monótono no escritório com as mesmas tarefas rotineiras.
2. A day that feels slow, uneventful, or unvarying in its course
After the exciting vacation, Monday felt like a monotonous day.
Depois das férias emocionantes, segunda-feira pareceu um dia monótono.