The Collaborative International Dictionary of English v.0.48:

Wrinkle \Wrin"kle\, v. t. [imp. & p. p. Wrinkled; p. pr. & vb.
   n. Wrinkling.]
   [1913 Webster]
   1. To contract into furrows and prominences; to make a
      wrinkle or wrinkles in; to corrugate; as, wrinkle the skin
      or the brow. "Sport that wrinkled Care derides." --Milton.
      [1913 Webster]

            Her wrinkled form in black and white arrayed.
                                                  --Pope.
      [1913 Webster]

   2. Hence, to make rough or uneven in any way.
      [1913 Webster]

            A keen north wind that, blowing dry,
            Wrinkled the face of deluge, as decayed. --Milton.
      [1913 Webster]

            Then danced we on the wrinkled sand.  --Bryant.
      [1913 Webster]

   To wrinkle at, to sneer at. [Obs.] --Marston.
      [1913 Webster]

WordNet (r) 3.0 (2006):

wrinkled
    adj 1: marked by wrinkles; "tired travelers in wrinkled clothes"
           [syn: wrinkled, wrinkly] [ant: unwrinkled,
           wrinkleless]
    2: (of linens or clothes) not ironed; "a pile of unironed
       laundry"; "wore unironed jeans" [syn: unironed, wrinkled]
       [ant: ironed]

Moby Thesaurus II by Grady Ward, 1.0:

131 Moby Thesaurus words for "wrinkled":
   advanced, advanced in life, advanced in years, aged,
   along in years, ancient, atrophied, brittle, canaliculate,
   canaliculated, chamfered, channeled, clamped, cockled, cockly,
   compressed, concentrated, condensed, consolidated, constricted,
   contracted, corduroy, corduroyed, corrugate, corrugated, costate,
   cragged, craggy, cramped, creased, crimped, crimpy, crinkled,
   crinkly, crumpled, cut, dadoed, desiccated, dried-up, elderly,
   emaciated, engraved, fluted, furrowed, gashed, goffered, gouged,
   gravelly, gray, gray with age, gray-haired, gray-headed, grooved,
   grown old, harsh, hoar, hoary, incised, ironbound, jagged, jaggy,
   knitted, knotted, nipped, old, old as Methuselah, papery,
   parchmenty, patriarchal, pinched, pinched-in, pleated, puckered,
   puckery, pursed, pursy, rabbeted, ragged, ribbed, ridged, rifled,
   rimpled, rippled, rockbound, rocky, rucked, rugged, rugose, rugous,
   rumpled, rutted, rutty, saw-toothed, sawtooth, scored, scragged,
   scraggly, scraggy, scratched, senectuous, sere, serrate, serrated,
   shriveled, shrunken, slit, snagged, snaggled, snaggy, solidified,
   squeezed, stony, strangled, strangulated, striated, sulcate,
   sulcated, troughed, venerable, wasp-waisted, wasted, white,
   white with age, white-bearded, white-crowned, white-haired, wilted,
   withered, wizened, wrinkly, years old