derelict
     adj 1: deserted or abandoned as by an owner; "a derelict ship"
     2: failing in what duty requires; "derelict (or delinquent) in
        his duty"; "neglectful of his duties"; "remiss of you not
        to pay your bills" [syn: {delinquent}, {neglectful}, {remiss}]
     n 1: a person unable to support himself
     2: a ship abandoned on the high seas [syn: {abandoned ship}]
Source: WordNet® 2.0