粘性 ねんせい流体 りゅうたいじゃなかったです
nenseiryūtaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 粘性流体

1. Wasn't a viscous fluid.; Wasn't a sticky fluid.

Past/Perfective
Negative
Polite
Casual Register
Physics