[{"Bold_text": "noun", "List Items": ["a vocal utterance or series of speech sounds in one unvaried tone.", "a single tone without harmony or variation in pitch.", "recitation or singing of words in such a tone.", "a person who is unable to discriminate between or to reproduce differences in musical pitch, especially in singing.", "sameness of tone or color, sometimes to a boring degree."]}, {"Bold_text": "adjective", "List Items": ["monotonous .", "consisting of or characterized by a uniform tone of one color:Compare monochromatic(defs1, 2) monochromatic(defs1, 2).a monotone drape.", "Mathematics. monotonic(def2) monotonic(def2)."]}]