きらびやかじゃなかったです
煌びやかじゃなかったです
kirabiyakajanakattadesu

Desu Copula
na-Adjective

The polite, past negative form of きらびやか

1. Wasn't dazzling.; Wasn't splendid.; Wasn't gorgeous.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana