take down a notch

idiomatic of a person or organization transitive of a thing

(transitive, idiomatic, of a person or organization) To cause a person's or group's self-esteem or importance to be decreased.

Japanese Meaning

（人や組織の自尊心や威信を）低くする、地位を下げる / （誰かや何かの）評価を落とす、過大評価を打ち消す

The public scandal served to take down a notch the politician's inflated sense of importance.

その不祥事は、その政治家の肥大した自尊心をくじき、過剰な重要感を和らげる役割を果たした。

Sense（1）

(transitive, idiomatic, of a person or organization) To cause a person's or group's self-esteem or importance to be decreased.

Sense（2）

(transitive, idiomatic, of a thing) To cause the quantity, degree, or intensity of something to be decreased.

[M]any travel companies are holding prices steady or taking them down a notch.

takes down a notch

（ present singular third-person ）

taking down a notch

（ participle present ）

took down a notch

（ past ）

taken down a notch

（ participle past ）