キヘリキンチャクダイじゃなかったです
kiherikinchakudaijanakattadesu

Noun
Desu Copula

The polite, past negative form of キヘリキンチャクダイ

1. Wasn't being frivolous.; Wasn't acting capriciously.

Past/Perfective
Negative
Polite
Casual Register