say it: muh-NAH-tuh-nee
monotony is a noun meaning "the quality of wearisome constancy, routine, and lack of variety". It carries 2 recorded senses.
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”
constancy of tone or pitch or inflection
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for monotony come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.