spidery

from WordNet (r) 3.0 (2006)

spidery
    adj 1: relating to or resembling a member of the class Arachnida
           [syn: {arachnoid}, {arachnidian}, {spidery},
           {spiderlike}, {spiderly}]

from Moby Thesaurus II by Grady Ward, 1.0

42 Moby Thesaurus words for "spidery":
      bony, dilapidated, doddering, flat, flat-chested, fleshless,
      gangling, gangly, gaunt, gawky, groggy, lank, lanky, lean,
      lean-fleshed, lean-looking, meager, ramshackle, rawboned,
      ricketish, rickety, rocky, scraggy, scrawny, shaky, skeletal,
      skinny, spare, spindling, spindly, teetering, teetery,
      thin-bellied, thin-fleshed, tottering, tottery, tumbledown, twiggy,
      undersized, underweight, unsteady, wobbly