The term 'disgustingly dirty' can be broken down into five crossword solutions: FILTHY (6 letters), NASTY (5 letters), SKANKY (6 letters), CRUDDY (6 letters), and STY (3 letters). FILTHY is an adjective that means extremely dirty or unclean, while NASTY is an adjective that means unpleasant or offensive. SKANKY is an adjective that means very dirty or unkempt, and CRUDDY is an adjective that means of poor quality or shabby. Lastly, STY is an informal noun that refers to a pigsty, which is a small, FILTHY enclosure for pigs. All of these words are used to describe something that is disgustingly dirty.