dilapidated Play adjective(of a building or object) in a state of disrepair or ruin as a result of age or neglect. SYNONYMS badly maintainedbatteredbroken-downcrumblingdecayeddecayingdecrepitdeteriorateddeterioratingfalling apartfalling to piecesgone to rack and ruingone to seedin disrepairin ruinsneglectedramshacklericketyruinedrumptyrun downshabbyshackyshakyshamblyslummythe worse for weartumbledownuncared-forunmaintainedunsounduntendedworn out