The term 'utter disaster' can be summarized by two crossword solutions: FIASCO (6 letters) and DEBACLE (7 letters). A FIASCO is a complete failure, usually in a public or spectacular way. It is derived from the Italian word for bottle, which was used to describe a failed theatrical production. A DEBACLE is a sudden and ignominious failure, often with disastrous consequences. It is derived from the French word for melting, which was used to describe a military defeat. Both words are used to describe a situation that has gone terribly wrong.