This is the 1544th most frequent Swedish word.
rolig
Funny; amusing.
Here, 'rolig' is used to mean 'funny' or 'amusing', describing the entertaining nature of the movie.
Den filmen var verkligen rolig.
That movie was really funny.
In this case, 'rolig' means 'fun' or 'exciting', showing the appealing or enjoyable aspect of the idea.
Det låter som en rolig idé!
That sounds like a fun idea!
In this example, 'rolig' describes a person's personality, implying they are interesting or pleasant in social interactions.