不輸 ふゆ不入 ふにゅうじゃないです
fuyu funyūjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 不輸不入

1. It's not losing, it's not entering.; It's not a loss, it's not an intrusion.

Negative
Polite
Casual Register