無限 むげん かい微分 びぶん可能 かのうじゃありませんでした
mugenka ibibunkano uja arimasendeshita

Desu Copula
na-Adjective

The polite, past negative form of 無限回微分可能

1. Not infinitely differentiable.; Was not infinitely differentiable.

Past/Perfective
Negative
Polite
Terminal Form
Mathematics