いでたちじゃなかったです
出で立ちじゃなかったです
idetachijanakattadesu

Noun
Desu Copula

The polite, past negative form of いでたち

1. Wasn't dressed up.; Wasn't prepared.; Wasn't ready.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana