derelict

nouns

a person without a home, job, or property
is a type of (narrower)
a person who is very poor
a ship abandoned on the high seas

adjectives

worn and broken down by hard use
"a creaky shack"; "a decrepit bus...its seats held together with friction tape"; "a flea-bitten sofa"; "a run-down neighborhood"; "a woebegone old shack"
forsaken by owner or inhabitants
"weed-grown yard of an abandoned farmhouse"
failing in what duty requires
"derelict (or delinquent) in his duty"; "neglectful of his duties"; "remiss of you not to pay your bills"
in deplorable condition
"a street of bedraggled tenements"; "a broken-down fence"; "a ramshackle old pier"; "a tumble-down shack"