1. Made coarse or crude by lack of skill

1. Make or become coarse or coarser
   "coarsen the surface"; "Their minds coarsened" 
2. Make less subtle or refined
   "coarsen one's ideals"

See also: inferior

Type of: alter, change, modify

• unsatisfactory
• unsatisfiable
• unsatisfied
• unsatisfying
• unsaturated
• unsaturated fatty acid
• unsaturation
• unsaved
• unsavoriness
• unsavory
• unsavouriness
• unsavoury
• unsay
• unsayable
• unscalable
• unscathed
• unscheduled
• unscholarly
• unschooled
• unscientific
• glossiness
• Glossinidae
• glossitis
• Glossodia
• glossodynia