ずさんじゃなかったです
杜撰じゃなかったです
zusanjanakattadesu

Noun
Desu Copula
na-Adjective

The polite, past negative form of ずさん

1. Wasn't fabricated.; Wasn't made up.; Wasn't invented.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana