ドあほうでわありませんでした
ド阿呆ではありませんでした
doahōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of ドあほ

1. Was not foolish.; Was not silly.; Was not an idiot.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana