#roughness__roughnes  a texture that is not smooth but is irregular and uneven
  exclusion:  #smoothness
  supertype:  #texture  the feel of a surface or a fabric; "the wall had a smooth texture"
  subtype:  #nubbiness__nubbines__coarsenes__tweediness  looseness or roughness in texture (as of cloth)
  subtype:  #slub__knot__burl  soft lump or unevenness in a yarn; either an imperfection or created by design
  subtype:  #abrasiveness__harshness__harshnes__scratchines  the roughness of a substance that causes abrasions
  subtype:  #graininess__coarseness__granularity  the quality of being composed of relatively large particles
     subtype:  #sandiness__sandines  a texture resembling that of sand
  subtype:  #shagginess  roughness of nap produced by long woolly hairs
  subtype:  #bumpiness__bumpines  the texture of a surface that has many bumps

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