Monotonous \Mo*not"o*nous\, a. [Gr. ?; mo`nos alone, single + ? 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.