This is the 5757th most frequent Korean word.
별로
"별로" means "not particularly" or "not really."
In this usage, '별로' acts as an adverb describing the degree of the statement, often with a negative connotation when paired with 'not'.
이 음식은 별로 맛있지 않아요.
This food is not very tasty.
Here, '별로' modifies the adjective '재미있지 않다', emphasizing the lack of interest in the movie.
그 영화는 별로 재미있지 않았어요.
That movie was not very interesting.
In this instance, '별로' conveys a sense of a low level of desire or inclination.