noun, noun which may take the genitive case particle 'no'
stuck in a rut; stereotyped; humdrum
Abbreviation of マンネリズム (mannerism). Used for situations, relationships, or creative work that have become stale, repetitive, or lacking freshness. Often appears as マンネリ化する or マンネリになる.
See also: マンネリズム
最近、仕事がマンネリ化してきた。
Lately, my work has become routine and stale.
このドラマもマンネリだね。
This drama is getting predictable, isn't it?
Eating the same menu every day, meals have started to feel monotonous.
Long-term couples easily fall into a rut.
We want to break out of the rut with a new project.