savagely

from WordNet (r) 3.0 (2006)

savagely
    adv 1: in a vicious manner; "he was viciously attacked" [syn:
           {viciously}, {brutally}, {savagely}]
    2: wildly; like an animal; "she cried out savagely"

from The Collaborative International Dictionary of English v.0.48

Savagely \Sav"age*ly\, adv.
   In a savage manner.
   [1913 Webster]

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