pertinacity
🇺🇸
/ˌpɜːrtnˈæsəti/
🇬🇧
/ˌpɜːtɪˈnæsəti/
when someone keeps trying to do something, even if it is hard
She showed her pertinacity by finishing the marathon, despite her injury.
그녀는 부상에도 불구하고 마라톤을 완주함으로써 그녀의 끈기를 보여주었다.