1der·e·lict 
/ˈderəˌlɪkt/ adjective
/ˈderəˌlɪkt/ adjective formal 1 : no longer cared for or used by anyone
▪ a derelict house/ship/place ▪ a slum filled with derelict [=run-down, dilapidated] warehouses 2 [more derelict; most derelict] US, formal : failing to do what should be done : negligent
▪ The officer was charged with being derelict in his duty.
▪ a derelict house/ship/place ▪ a slum filled with derelict [=run-down, dilapidated] warehouses
▪ The officer was charged with being derelict in his duty.
