1. A journey, path, or route that is tedious, repetitive, and lacking in variety or interest
The daily commute felt like a monotonous route with no variation.
O trajeto diário parecia um trajeto monótono sem nenhuma variação.
2. A travel path characterized by unchanging scenery, activity, or experience that causes boredom
She grew tired of the monotonous journey through the desert.
Ela se cansou do trajeto monótono através do deserto.