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.
Der"e*lict, n. (Law) (a) A thing voluntary abandoned or willfully cast away by its proper owner, especially a ship abandoned at sea. (b) A tract of land left dry by the sea, and fit for cultivation or use.
Der`e*lic"tion (?), n. [L. derelictio.] 1. The act of leaving with an intention not to reclaim or resume; an utter forsaking abandonment.
Cession or dereliction, actual or tacit, of other powers.
Burke.