マンネリ
manneri

Noun
no-Adjective

1. becoming stereotyped; becoming tedious; becoming repetitive; becoming routine; getting stuck in a rut; humdrum; mannerism (art, etc.)

Abbreviation
Related to マンネリズム
この番組 ばんぐみはマンネリになっている。
kono bangumiwa mannerini natte iru.
This program has become stereotyped.