Crossword clues for the word: BELOWZERO The word BELOWZERO has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for BELOWZERO Showing 1 to 5 of 5 results Clue(s) Bitterly cold Extremely cold outside: 2 wds. Frigid Like some harsh weather When it's very cold in winter - for one?