Crossword clues for the word: COARSEN The word COARSEN has appeared as an answer to at least 12 crossword clues on different crossword puzzles. Crossword clues for COARSEN Showing 1 to 12 of 12 results Clue(s) Become more vulgar Get callous Get less polite dupe welcoming English bum? (7) Get rougher Make crude Make harsh Make more crude Make rough Make rougher Make vulgar Turn harsh Use sandpaper