帰還 きかん不能 ふのう限界 げんかい てんじゃないです
kikanfunōgenka itenjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 帰還不能限界点

1. Not the point of no return.; It's not the limit beyond which return is impossible.

Negative
Polite
Casual Register