Synonyms for Shrunken (same or very similar meaning)
WordNet sense 1 (lean and wrinkled by shrinkage as from age or illness):
shriveled, wizen, wizened, shrivelled, withered
WordNet sense 2 (lacking excess flesh):
lean
WordNet sense 3 (made less in size or amount or degree):
decreased, reduced
WordNet sense 4 (reduced in size by being drawn together):
shrunk
WordNet sense 5 (reduced in size or pulled together):
contracted
From the ODE community, based on WordNet
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