Answer: creakiest

AnswerCrossword Clue
CREAKIESTMost dilapidated.
creakiestCREAKY, creaking
creakiestAppearing old-fashioned; decrepit
creakiest(of a voice) Producing such a sound
creakiest(of an object, typically a wooden one) Making or liable to make a harsh, high-pitched sound when being moved or when pressure or weight is applied