This is the 7998th most frequent Polish word.
najtrudniejsza
"Najtrudniejsza" means "the most difficult" in English.
The word 'najtrudniejsza' serves as the superlative form of 'trudna' (difficult), describing the riddle by emphasizing its comparison to all others as the most challenging.
Ta jest najtrudniejsza zagadka, jaką kiedykolwiek rozwiązywałem.
This is the most difficult riddle I have ever solved.
'Najtrudniejsza' highlights the degree of difficulty of the decision, marking it as the hardest one experienced in the speaker's life.
Najtrudniejsza decyzja w moim życiu była podjęta na studiach.
The most difficult decision in my life was made during college.
Here, 'najtrudniejsza' identifies a specific task as having the highest level of difficulty in the context of the project's components.