根性

guts, determination, grit

k õ̞ ɲ̟ d͡ʑ o̞ː
noun Rare #44,781
guts, determination, grit Often used to praise or criticize someone's toughness and willingness to keep going.
JA: 彼女は根性がある。
EN: She has a lot of grit.

君はすごく根性があるね。

You’ve got a lot of grit.

なんだあの根性なし

What a coward.

— The Garden of Sinners: Paradox Spiral (2008)

根性がないから下も無理

I don't have the guts, so I can't do anything below either.

— プラットフォーム (2019)

何をする根性だ

What the hell do you think you're doing?

— プラットフォーム (2019)

Sounds similar to