This is the 17814th most frequent Russian word.
упорство
Persistence; determination.
The word 'упорство' is used to describe determination in achieving a challenging goal.
Её упорство в достижении цели впечатляет.
Her persistence in achieving the goal is impressive.
In this sentence, 'упорство' highlights the role of steadfast effort in overcoming difficulties.
Только благодаря упорству он смог выполнить это задание.
Only thanks to perseverance was he able to complete this task.
Here, 'упорство' conveys the general concept of persistence as a valuable trait.