1. having a rougher or less smooth texture (comparative form of coarse)
2. less refined or more vulgar in behavior or language (comparative form of coarse)
3. made up of larger particles or having less fine detail (comparative form of coarse)

Examples

• The sandpaper became coarser as we moved to lower grits.
• His manners grew coarser after spending years in the rough mining camp.
• The fabric felt coarser than the silk we had examined earlier.
• The coarser salt crystals dissolved more slowly in the water.
• Her language became coarser when she was angry.
• The coarser mesh allowed larger particles to pass through.
• The painting’s brushstrokes appeared coarser in the unfinished sections.