This is the 17575th most frequent Russian word.
трудных
"Трудных" means "difficult" or "challenging" (genitive plural or accusative plural form).
In this sentence, 'трудных' is used as an adjective modifying the plural noun 'временах' (times), describing them as difficult.
Эта история ободрит тебя в трудных временах.
This story will encourage you in difficult times.
Here, 'трудных' serves as an adjective describing the plural noun 'задач' (problems), indicating their challenging nature.
Она занималась решением трудных задач.
She worked on solving difficult problems.
In this example, 'трудных' is an adjective related to the plural noun 'условиях' (circumstances), characterizing them as challenging or problematic.