This is the 998th most frequent Czech word.
zajímavé
Interesting.
Here, "zajímavou" is the declined form of the adjective "zajímavý" in the accusative case, modifying "debatu" to convey the fascinating nature of the discussion.
Měli jsme zajímavou debatu o umění.
We had an interesting discussion about art.
In this sentence, "zajímavé" functions as a predicate adjective, describing the entire clause "že se učíš češtinu."
Je zajímavé, že se učíš češtinu.
It's interesting that you are learning Czech.
The word "zajímavý" here is used as an adjective to describe the movie, emphasizing its engaging or intriguing nature.