The term 'fail miserably' can be represented by five different crossword solutions: TANK (4 letters), BOMB (4 letters), Fizle (5 letters), Fallflat (8 letters), and Comeacropper (12 letters). TANK and BOMB are both military terms, suggesting a sense of destruction or failure. Fizle is a verb meaning to sputter or fizzle out, which implies a lack of success. Fallflat is an idiom meaning to fail completely, while Comeacropper is another idiom meaning to fail in a spectacular way. All five of these solutions suggest a sense of complete failure.