IPA: /məˈnɒtənəsnəs/
KK: /mənˈɒtənəsnəs/
The quality of being dull and repetitive, lacking in variety or interest.
The monotonousness of the lecture made it hard for the students to stay awake.
Monotonousness → It is formed from "mono-" (meaning one or single) and "tonus" (from Greek, meaning tone or sound) combined with the suffix "-ness" (meaning the state of being). The word describes the state of having a single tone or lacking variety, leading to dullness.
Think of 'mono-' meaning one and 'tonus' referring to tone — this helps you remember that monotonousness means the state of having just one tone, making it dull.