帰還 きかん不能 ふのう限界 げんかい てんなら
kikanfunōgenka itennara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 帰還不能限界点

1. If/when the point of no return is reached.; If/when the limit of non-return is reached.

Nara Conditional