decrepit Play adjectiveWorn out or ruined because of age or neglect. SYNONYMS antiquatedbatteredbroken-downcreakingcreakycrumblingdecayeddecayingderelictdeteriorateddeterioratingdilapidatedfalling apartfalling to piecesgone to rack and ruinin (a state of) disrepairin ruinson its last legsramshacklericketyruinedrumptyrun downsuperannuatedthe worse for weartumbledownworn out