This is the 14039th most frequent Swedish word.
överraskat
"Överraskat" means "surprised" in English.
The word 'överraskat' is used as an adverb here, indicating the manner in which he became happy - in a surprised way.
Han blev överraskat glad när han såg presenten.
He was surprisingly happy when he saw the gift.
In this sentence, 'överraskat' serves as an adverb, modifying the adjective 'konstig' (strange) to denote that the feeling was unexpected.
Hon kände sig överraskat konstig efter mötet.
She felt surprisingly strange after the meeting.
Here, 'överraskat' is an adverb describing the manner of their reaction to the news.