I looked at several online dictionaries, all of which didn't seem to me that the expression doesn't have negative sense by definition. However the book I'm reading makes me feel the author implies negative sense. Can anyone show references that define the term more clearly regarding this aspect?
Update) Per request, here's the book and the passage (not exact since I'm solely depending on my memory) I'm reading.
2004 年公開の映画 "I, Robot" は，Isaac Asimov の同名の小説を換骨奪胎した別物である．