Crossword clues for the word: SLOWBURN The word SLOWBURN has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for SLOWBURN Showing 1 to 6 of 6 results Clue(s) "Prelude to an explosion, perhaps" Angry buildup Gradual angering Gradual increase in intensity Gradually increasing rage Gradually increasing rage: 2 wds.