The Collaborative International Dictionary of English v.0.48:

Shred \Shred\, v. t. [imp. & p. p. Shred or Shredded; p. pr.
   & vb. n. Shredding.] [OE. shreden, schreden, AS.
   scre['a]dian; akin to OD. schrooden, OHG. scr?tan, G.
   schroten. See Shred, n.]
   1. To cut or tear into small pieces, particularly narrow and
      long pieces, as of cloth or leather. --Chaucer.
      [1913 Webster]

   2. To lop; to prune; to trim. [Obs.]
      [1913 Webster]

WordNet (r) 3.0 (2006):

shredded
    adj 1: prepared by cutting; "sliced tomatoes"; "sliced ham";
           "chopped clams"; "chopped meat"; "shredded cabbage" [syn:
           chopped, shredded, sliced]

Moby Thesaurus II by Grady Ward, 1.0:

56 Moby Thesaurus words for "shredded":
   branny, chalklike, chalky, cleft, cloven, comminute, comminuted,
   cracked, crushed, cut, detrital, detrited, disintegrated, dusty,
   efflorescent, farinaceous, fine, flaky, floury, furfuraceous,
   gone to dust, grated, ground, impalpable, in pieces, in shreds,
   lacerate, lacerated, levigated, mangled, mealy, milled, mutilated,
   pestled, powdered, powdery, pulverant, pulverized, pulverulent,
   quartered, ragged, reduced to powder, rent, riven, scaly,
   scobicular, scobiform, scurfy, severed, sharded, slit, splintered,
   split, tattered, torn, triturated