dilapidated
/də-ˈla-pə-ˌdā-təd/
adjective
decayed, deteriorated, or fallen into partial ruin especially through neglect or misuse
a dilapidated old house
verb
to bring into a condition of decay or partial ruin
squander
to decay, deteriorate, or fall into partial ruin especially through neglect or misuse : to become dilapidated
furniture is dilapidated by use