WordNet (r) 3.0 (2006):

scraggly
    adj 1: lacking neatness or order; "the old man's scraggly
           beard"; "a scraggly little path to the door"

Moby Thesaurus II by Grady Ward, 1.0:

67 Moby Thesaurus words for "scraggly":
   beat-up, bedraggled, blowzy, careless, chintzy, corrugated,
   cragged, craggy, crinkled, crumpled, dilapidated, drabbletailed,
   draggled, draggletailed, frowzy, frumpish, frumpy, gravelly,
   grubby, harsh, in rags, informal, ironbound, jagged, jaggy, loose,
   lumpen, messy, mussy, negligent, poky, ragged, raggedy, rockbound,
   rocky, rugged, rugose, rugous, ruinous, saw-toothed, sawtooth,
   scragged, scraggy, seedy, serrate, serrated, shabby, shoddy, slack,
   slatternly, slipshod, sloppy, slovenly, sluttish, snagged,
   snaggled, snaggy, sordid, squalid, stony, tacky, tattered, unkempt,
   unneat, unsightly, untidy, wrinkled