Crossword clues for the word: PROMPOSAL The word PROMPOSAL has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for PROMPOSAL Showing 1 to 5 of 5 results Clue(s) Event that might involve a flash mob or a decorated locker Often-elaborate high school invitation School dance invite portmanteau Senior's elaborate ask Senior's invitation that may involve a flash mob