true grit

Translations
настоящая стойкость
She proved her true grit by standing up for her beliefs.
Она доказала свою настоящую стойкость, отстаивая свои убеждения.
Definitions
True grit refers to a person's unwavering courage, determination, and resilience in the face of challenges or adversity. It embodies a strong will and the ability to persevere despite difficulties.