scabrous , adj :
Covered with scales or scabs; hence, very coarse or rough. (figuratively) Disgusting, repellent, repulsive, vile. (figuratively) Of music, writing, etc.: lacking refinement, harsh, rough; unmelodious, unmusical. (figuratively) Difficult, thorny, troublesome. (figuratively, chiefly US) Covered with a crust of dirt or grime.
Source http://handbookblogger.blogspot.com/2017/08/scabrous-word-of-day-for-august-18-2017.html
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