Crossword clues for the word: GREATUNCLE The word GREATUNCLE has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for GREATUNCLE Showing 1 to 11 of 11 results Clue(s) Family relative Get 5 for member of family Grandmother's sibling Grandparent’s brother Lionel to Drew Barrymore Lord Mountbatten to Prince Charles Male relative Scrooge, to Dewey or Louie Superlative relative? Ted Kennedy to Rose Schlossberg Terrific relative?