The Collaborative International Dictionary of English v.0.48:

Ferine \Fe"rine\, a. [L. ferinus, fr. ferus wild. See Fierce.]
   Wild; untamed; savage; as, lions, tigers, wolves, and bears
   are ferine beasts. --Sir M. Hale. -- n. A wild beast; a beast
   of prey. -- Fe"rine*ly, adv. -- Fe"rine*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ferine
    adj 1: wild and menacing; "a pack of feral dogs" [syn: feral,
           ferine, savage]