1.Definition: constancy of tone or pitch or inflection

Category: General

2.Definition: the quality of wearisome constancy, routine, and lack of variety

"He had never grown accustomed to the monotony of his work", "He was sick of the humdrum of his fellow prisoners", "He hated the sameness of the food the college served"

Related Noun(s):humdrum, sameness

Category: General