逆流 ぎゃくりゅうじゃなかったです
gyakuryūjanakattadesu

Noun
Desu Copula
no-Adjective

The polite, past negative form of 逆流

1. Wasn't flowing back.; Wasn't going against the current.; Wasn't reversing.

Past/Perfective
Negative
Polite
Casual Register