untamed

from WordNet (r) 3.0 (2006)

untamed
    adj 1: in a natural state; not tamed or domesticated or
           cultivated; "wild geese"; "edible wild plants" [syn:
           {wild}, {untamed}] [ant: {tame}, {tamed}]

from The Collaborative International Dictionary of English v.0.48

Untamed \Untamed\
   See {tamed}.

from Moby Thesaurus II by Grady Ward, 1.0

56 Moby Thesaurus words for "untamed":
      Gothic, Neanderthal, animal, atrocious, barbarian, barbaric,
      barbarous, bestial, bloody, brutal, brutish, feral, ferine,
      ferocious, fierce, ill-bred, impolite, inhuman, kill-crazy, malign,
      malignant, merciless, murderous, noncivilized, outlandish,
      pitiless, primitive, rough-and-ready, ruthless, sanguinary, savage,
      tameless, troglodytic, unbroken, uncivil, uncivilized, uncombed,
      unconquered, uncontrollable, uncouth, uncultivated, uncultured,
      undomesticated, unenthralled, ungentle, ungoverned, unkempt,
      unlicked, unpolished, unquelled, unrefined, unsubdued, unsubject,
      unvanquished, vicious, wild