1. made rough or less smooth in texture
Usage: past tense and past participle of coarsen
2. made less refined or more vulgar in manner or speech
Usage: past tense and past participle of coarsen

Examples

• Years of manual labor had coarsened his hands.
• The sandpaper coarsened the wood’s surface.
• His manners had coarsened after spending time with rough companions.
• The fabric coarsened after repeated washing.
• Prison life had coarsened his speech and behavior.
• Wind and salt air coarsened her skin over the years.