みじんこうきくさじゃなかったです
微塵子浮草じゃなかったです
mijinkōkikusajanakattadesu

Noun
Desu Copula

The polite, past negative form of みじんこうきくさ

1. Wasn't a speck of dust/floating weed.; Wasn't insignificant.

Past/Perfective
Negative
Polite
Casual Register
Usually Written in Kana