roughness
noun
[ ˈrʌfnəs ]
• the quality or state of having an uneven or irregular surface.
• "the craggy roughness of every peak"
• the quality of lacking gentleness.
• "a certain amount of playfighting and roughness is normal for dogs"
• the quality of not being refined or completed.
• "the roughness of his drawing"
• the quality of sounding harsh and rasping.
• "her voice has a throaty roughness to it"