a. | 1. | Uttered in one unvarying tone; continued with dull uniformity; characterized by monotony; without change or variety; wearisome. |
Adj. | 1. | monotonous - sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting" |
2. | monotonous - tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea" Synonyms: humdrum |