Crossword clues for the word: UNFASTEN The word UNFASTEN has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for UNFASTEN Showing 1 to 6 of 6 results Clue(s) "Make it easier to breathe, belt-wise" "Release, as a seatbelt" "Remove the chain from, say" "Remove, as a seatbelt" Loosen United? New soccer group’s trimmed soccer team Undo