also: そしょう
na-adjective, noun
Describes something lacking polish, refinement, or delicacy; can apply to materials, workmanship, or behavior. The reading そしょう is rare.
この陶器は表面が粗鬆で、手触りが悪い。
This pottery has a rough surface and feels unpleasant to the touch.
彼の文章はまだ粗鬆で、
His writing is still crude and needs polishing.
The kanji 粗 means 'coarse' or 'rough', and 鬆 means 'loose' or 'porous'. The combination suggests a lack of density or refinement. The exact historical derivation is uncertain.