きちがいでわありませんでした
気違いではありませんでした
kichigaidewārimasendeshita

Noun
Desu Copula
no-Adjective

The polite, past negative form of きちがい

1. Was not insane.; Was not crazy.; Was not mentally ill.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana