むやみでわありませんでした
無闇ではありませんでした
muyamidewārimasendeshita

Noun
Desu Copula
na-Adjective

The polite, past negative form of むやみ

1. Was not reckless.; Was not unreasonable.; Was not groundless.

Past/Perfective
Negative
Polite
Formal Register
Usually Written in Kana