definition of
roughness

[1] #1 roughness n. [raggedness] a texture of a surface or edge that is not smooth but is irregular and uneven. wn

[2] #2 roughness n. [harshness] the quality of being unpleasant (harsh or rough or grating) to the senses. wn

[3] #3 roughness n. [crudeness] an unpolished unrefined quality; "the crudeness of frontier dwellings depressed her". wn

[4] #4 roughness n. [choppiness, rough water] used of the sea during inclement or stormy weather. wn

[5] #5 roughness n. [rowdiness, rowdyism, disorderliness] rowdy behavior. wn