凡庸 ぼんよう愚昧 ぐまいでした
bon'yōgumaideshita

Noun
Desu Copula
na-Adjective
no-Adjective

The polite past form of 凡庸愚昧

1. Was commonplace and foolish.; Was mediocre and ignorant.

Past/Perfective
Polite