Stupid One - Crossword Clue Answers - Crossword Solver The crossword clue Stupid onewith 5 letters was last seen on the January 01, 2004. We think the likely answer to this clue is DUMBO. Below are all possible answers to this clue ordered by its rank. You can easily improve your search by specifying the number of letters in the answer. Refine the search results by specifying the number of letters.