incessant(without pause or stop; not ending) adjective [UK: ɪn.ˈsesnt] [US: ˌɪn.ˈse.sənt]She spent hours alone, absorbed in contemplating the incessant hustle and bustle of the ants in the ant mound behind the house. = Pasaba horas sola, contemplando absorta el ajetreo incesante de las hormigas en el hormiguero que había detrás de la casa.
unceasing(continuing indefinitely without stopping) adjective [UK: ʌn.ˈsiːs.ɪŋ] [US: ʌn.ˈsiːs.ɪŋ]