凡庸 ぼんよう愚昧 ぐまいじゃありませんでした
bon'yōgumaijārimasendeshita

Noun
Desu Copula
na-Adjective
no-Adjective

The polite, past negative form of 凡庸愚昧

1. Was not commonplace/mediocre.; Was not foolish/ignorant.

Past/Perfective
Negative
Polite
Terminal Form