- lacking in variety; tediously unvarying: the monotonous flat scenery.
- characterizing a sound continuing on one note.
- having very little inflection; limited to a narrow pitch range.
- dull and tedious, esp because of repetition
- unvarying in pitch or cadence
adj.1750, of sound, from Greek monotonos “of one tone” (see monotony). Transferred and figurative use, “lacking in variety, uninteresting,” is from 1783. Related: Monotonously.