1. (a.) Given up or forsaken by the natural owner or guardian; left and abandoned; as, derelict lands, dereliction of duty\.

2. (a.) Lost; adrift; hence, wanting; careless; neglectful; unfaithful.

3. (n.) A thing voluntary abandoned or willfully cast away by its proper owner, especially a ship abandoned at sea.

4. (n.) A tract of land left dry by the sea, and fit for cultivation or use.

Bowery bum DP Ishmael abandoned battered beachcomber beat-up beaten up beggar beggarly fellow behindhand blighter broken-down budmash bum bummer caitiff careless cast-off castaway castoff culpably negligent declasse decrepit delinquent deserted desolate devil dilapidated dilatory dingy disaffected discard discarded disloyal disowned displaced person disregardful disused dogie down-and-out drifter drunkard evictee exile expatriate expellee faded faithless FALSE fickle floater flotsam flotsam and jetsam forsaken foundling good-for-naught good-for-nothing heedless hobo human wreck in ruins inadvertent inattentive inconstant irresponsible jetsam jettisoned junk lagan laissez-faire lax lazzarone left leper loafer loose lowlife malingerer marooned mauvais sujet mean wretch mucker neglected neglectful neglecting negligent no-good noninterfering nonrestrictive not true to of bad faith off-guard orphan outcast outcast of society outcaste outlaw outside the gates outside the pale overly permissive pariah pauvre diable permissive persona non grata pilgarlic poor creature poor devil procrastinating ramshackle recreant refuse regardless reject rejected relaxed remiss rubbish ruined ruinous run-down sad case sad sack scamping seedy shabby skid-row bum skimping slack slacker slighting slipshod sloppy slovenly slummy slurring social outcast solitary stiff street arab sundowner swagman threadbare tottery tramp trash trothless truant tumbledown unacceptable person uncircumspect uncouth undependable undesirable unfaithful unguarded unloyal unreliable unrigorous unsteadfast untouchable untrue untrustworthy unwary unwatchful vag vagabond vagrant vaurien waif waifs and strays wastrel worthless fellow wretch