How would you describe an object that is rough and has sharp points?

To describe an object that is rough and has sharp points, the term "jagged" is most appropriate. "Jagged" conveys the idea of having a rugged, uneven, or serrated edge or surface—characteristics that align well with the description of roughness and sharp points. This term typically evokes images of surfaces that are not only textured but also potentially dangerous to touch due to their sharpness, which further supports its relevance in this context.

In contrast, other terms such as "smooth" would imply a lack of texture and sharpness, making it incompatible with the description given. "Flat" refers to a surface that is level and even, lacking the dimensionality of roughness or pointed features. "Curved" suggests a rounded shape rather than sharpness, which again does not fit with the description of an object that possesses sharp points. Hence, "jagged" stands out as the clear and fitting choice for describing such an object.