(adj) tediously repetitious or lacking in variety, Syn. monotonous, Example:a humdrum existence; all work and no play; nothing is so monotonous as the sea
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
a. [ Gr. &unr_;; mo`nos alone, single + &unr_; tone. See Tone. ] Uttered in one unvarying tone; continued with dull uniformity; characterized by monotony; without change or variety; wearisome. -- Mo*not"o*nous*ly, adv. -- Mo*not"o*nous*ness, n. [ 1913 Webster ]