凡庸 ぼんよう愚昧 ぐまいじゃなかったです
bon'yōgumaijanakattadesu

Noun
Desu Copula
na-Adjective
no-Adjective

The polite, past negative form of 凡庸愚昧

1. Wasn't ordinary/mediocre.; Wasn't foolish/ignorant.

Past/Perfective
Negative
Polite
Casual Register