'Monotony' definitions:

Definition of 'monotony'

(from WordNet)
noun
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" [syn: monotony, humdrum, sameness]
noun
Constancy of tone or pitch or inflection

Definition of 'Monotony'

From: GCIDE
  • Monotony \Mo*not"o*ny\, n. [Gr. ?: cf. F. monotonie. See Monotonius.]
  • 1. A frequent recurrence of the same tone or sound, producing a dull uniformity; absence of variety, as in speaking or singing. [1913 Webster]
  • 2. Any irksome sameness, or want of variety. [1913 Webster]
  • At sea, everything that breaks the monotony of the surrounding expanse attracts attention. --W. Irving. [1913 Webster]

Synonyms of 'monotony'

From: Moby Thesaurus