droned russian
бубни́мый
muttered, droned, grumbled
долдоненный
droned, harped on, reiterated monotonously, drilled (into someone's head)
долдонимый
droned, monotonously repeated, tediously repeated
Examples
Учитель бубнил лекцию монотонным голосом.
The teacher droned on in a monotonous voice as he gave the lecture.



















