Crossword clues for the word: STIFFUPPERLIP The word STIFFUPPERLIP has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for STIFFUPPERLIP Showing 1 to 5 of 5 results Clue(s) “...my pronunciation sucks...” Comp claim from a courageous trumpeter? Determined attitude. Sign of courage So the monster will not cry