Breakdown of Najtrudniejsza jest dla mnie odmiana, kiedy nie wiem, gdzie pada akcent.
Questions & Answers about Najtrudniejsza jest dla mnie odmiana, kiedy nie wiem, gdzie pada akcent.
Because it agrees with odmiana, which is a feminine noun in Polish.
- trudny = difficult
- trudniejszy = more difficult
- najtrudniejszy = most difficult
Since odmiana is feminine singular, the adjective becomes:
- najtrudniejsza
This is normal adjective–noun agreement in Polish.
Both are possible. The version in your sentence puts stronger focus on najtrudniejsza.
Polish word order is more flexible than English, so changing the order often changes emphasis rather than basic meaning.
- Najtrudniejsza jest dla mnie odmiana = The hardest thing for me is inflection / emphasis on the hardest
- Odmiana jest dla mnie najtrudniejsza = Inflection is the hardest for me / more neutral, with odmiana introduced first
So this word order is mainly about style and focus.
Here odmiana means inflection, that is, changing word forms depending on case, number, person, tense, and so on.
Depending on context, odmiana can also mean things like:
- declension (for nouns, adjectives, pronouns)
- conjugation (for verbs)
- more generally, word inflection
So in this sentence it is being used in a broad grammar sense.