The Collaborative International Dictionary of English v.0.48:

Wizened \Wiz"ened\, a.
   Dried; shriveled; withered; shrunken; weazen; as, a wizened
   old man.
   [1913 Webster]

WordNet (r) 3.0 (2006):

wizened
    adj 1: lean and wrinkled by shrinkage as from age or illness;
           "the old woman's shriveled skin"; "he looked shriveled
           and ill"; "a shrunken old man"; "a lanky scarecrow of a
           man with withered face and lantern jaws"-W.F.Starkie; "he
           did well despite his withered arm"; "a wizened little man
           with frizzy grey hair" [syn: shriveled, shrivelled,
           shrunken, withered, wizen, wizened]

Moby Thesaurus II by Grady Ward, 1.0:

113 Moby Thesaurus words for "wizened":
   Lilliputian, Sanforized, Tom Thumb, adust, anile, atrophied,
   attenuated, baked, brittle, burnt, cadaverous, consumed, corky,
   corpselike, crabbed, debilitated, decrepit, dehydrated, desiccated,
   doddered, doddering, doddery, dried, dried-up, dumpy, dwarf,
   dwarfed, dwarfish, elfin, emacerated, emaciate, emaciated,
   evaporated, exsiccated, feeble, fossilized, gerontal, gerontic,
   haggard, hollow-eyed, incipient, infirm, jejune, marantic,
   marasmic, meager, midget, mossbacked, moth-eaten, mummified,
   mummylike, nanoid, palsied, papery, papery-skinned, parched,
   parchmenty, peaked, peaky, pinched, poor, preshrunk, puny, pygmy,
   ravaged with age, rickety, rudimental, rudimentary, run to seed,
   runty, rusty, scorched, scraggy, scrubby, sear, seared, senile,
   sere, shaky, shriveled, shriveled up, shrunk, shrunken, skeletal,
   squat, starved, starveling, stricken in years, stunted, sun-dried,
   sunbaked, tabetic, tabid, thin, timeworn, tottering, tottery,
   underfed, undernourished, undersize, undersized, wasted,
   wasted away, weak, weazened, weazeny, wilted, wind-dried, withered,
   wizen, wizen-faced, wraithlike, wrinkled