der·e·lict
| \ ˈder-ə-ˌlikt
, ˈde-rə-\
1
: abandoned especially by the owner or occupant
derelict warehouses
also
: run-down
a derelict neighborhood
2
: lacking a sense of duty : negligent
derelict in his duty derelict landlords
1a
: something voluntarily abandoned
especially
: a ship abandoned on the high seas
b
geology
: a tract of land left dry by receding water