The term 'DISASTROUS END' can be broken down into two crossword solutions: DOOM (4 letters) and CURTAINS (8 letters). The word 'DOOM' is often used to describe a situation that is certain to end in disaster or failure. It can also refer to a person's fate or destiny, implying that it is predetermined and unavoidable. The word 'CURTAINS' is often used metaphorically to refer to the end of something, such as a play or a life. In this context, it implies that the disastrous end is inevitable and cannot be avoided.