This is the 12746th most frequent Polish word.
niespodziewany
Unexpected.
Here, 'niespodziewany' describes something that occurs or appears without prior anticipation or expectation, modifying 'prezent' (gift).
Dostałem niespodziewany prezent od przyjaciela.
I received an unexpected gift from a friend.
In this sentence, 'niespodziewane' modifies the noun 'odwiedziny' (visit), indicating that the visit happened without notice or planning.
Jej niespodziewane odwiedziny sprawiły mi radość.
Her unexpected visit brought me joy.
Here, 'niespodziewane' qualifies 'rezultaty' (results), showing the unanticipated nature of these results.