This is the 4967th most frequent Portuguese word.
inesperado
Unexpected.
Here, 'inesperado' is used as an adjective to describe the movie's ending that was unforeseen.
O final do filme foi completamente inesperado.
The movie's ending was completely unexpected.
In this context, 'inesperado' modifies 'presente', indicating that the gift was unanticipated and surprising.
Receber aquele presente inesperado me emocionou.
Receiving that unexpected gift deeply moved me.
'Inesperado' in this sentence describes the result of the research as unforeseen and surprising.