Monotonous is an adjective.
with
The stem of the word monotonous is monotony.
The singer had an monotonous voice, the song was boring
Sally work and a cook show and became monotonous and she had fun cooking
Her voice was very monotonous, and I soon became bored listening to her talk.
Anything longer than the first round just becomes monotonous.
The noun form of the adjective 'monotonous' is monotonousness.A related noun form is monotony.
Answering all these simple questions is getting a bit monotonous
One possible adverb for "monotonous" is "monotonously," which describes an action done in a monotonous manner.
no
Singsong