Derelict

Part of speech: noun (n.)

1. A thing voluntary abandoned or willfully cast away by its proper owner, especially a ship abandoned at sea.

2. A tract of land left dry by the sea, and fit for cultivation or use.

Part of speech: adjective (a.)

1. Given up or forsaken by the natural owner or guardian; left and abandoned; as, derelict lands. The affections which these exposed or derelict children bear to their mothers, have no grounds of nature or assiduity but civility and opinion. Jer. Taylor.

2. Lost; adrift; hence, wanting; careless; neglectful; unfaithful. They easily prevailed, so as to seize upon the vacant, unoccupied, and derelict minds of his [Chatham's] friends; and instantly they turned the vessel wholly out of the course of his policy. Burke. A government which is either unable or unwilling to redress such wrongs is derelict to its highest duties. J. Buchanan.