What's the adjective for monotony? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs monotone and monotonize which may be used as adjectives within certain contexts.
monotonic
of or using the Greek system of diacritics which discards the breathings and employs a single accent to indicate stress.
(mathematics) said of a function that either never decreases or never increases as its independent variable increases.
“Neither houses nor fields can be made out clearly in the monotonous shades of yellow and green of mountain grass and rocks and fringes of trees which border the creeks.”
“Redecorate walls in a variety of attractive colors instead of a single monotonous color.”
“Her song is not the single monotonous note of neo-Darwinian mutation but a symphony of all possible notes, voices, and instruments.”
monotone
(of speech or a sound) having a single unvariedpitch
(mathematics) of a function: having the property of either always decreasing or always increasing