This is the 264th most frequent Polish word.
trudno
"Trudno" means "difficult" or "hard" in English.
Here, 'trudno' is used as an adverb meaning 'hard' or 'difficult', indicating the difficulty of an action.
Trudno było znaleźć drogę w tej mgle.
It was hard to find the way in this fog.
In this context, 'trudno' expresses resignation or acceptance of a situation.
Trudno, trzeba to zaakceptować.
It's tough, one has to accept it.
'Trudno' functions here as a part of a question about the level of difficulty of an action.