perseveringgerund / present participle Used attributively or predicatively to describe someone who continues firmly in a course of action despite difficulty.
Translations
He remained persevering despite the setbacks.
Он оставался упорным, несмотря на неудачи.
Definitions
Continuing steadfastly or determinedly in a course of action despite difficulty, delay, or opposition. Her persevering spirit kept the project alive when everyone else had given up.