Texture:
* Bumpy: This suggests a slight unevenness.
* Granular: This implies a slightly textured surface with tiny particles.
* Textured: A general term for a surface that has a slight pattern or unevenness.
* Slightly abrasive: This implies a roughness that might cause a little friction.
* Roughened: This suggests a surface that has been made slightly rough.
* Uneven: This implies a lack of smoothness.
Feeling:
* Gritty: This suggests a slightly coarse feeling.
* Stony: This implies a hardness and roughness.
* Pithy: This suggests a slightly rough and dry feeling, perhaps like bark.
* Rugged: This suggests a sturdy, tough, and slightly rough surface.
* Coarse: This implies a lack of refinement and a slightly rough texture.
Metaphorical:
* Jagged: This implies a sharp, uneven edge.
* Unpolished: This suggests a lack of refinement and a slight imperfection.
* Raw: This implies a natural, unrefined state that might be slightly rough.
* Unsmooth: This is a general term that captures the lack of smoothness.
The best word to use depends on the specific situation and the type of roughness you're trying to describe.