Wish Undone is a term used to describe the feeling of REGRET or sorrow for something that has already happened. The crossword solutions for this term are REGRET (6 letters), RUE (3 letters), and REGRETTING (10 letters). REGRET is a verb meaning to feel sorrow, remorse, or disappointment about something that has happened or been done. RUE is a verb meaning to feel deep sorrow or REGRET for something that has happened. REGRETTING is a verb meaning to feel sorrow or REGRET for something that has happened or been done.