The Collaborative International Dictionary of English v.0.48:

Friendless \Friend"less\, a. [AS. fre['o]ndle['a]s.]
   Destitute of friends; forsaken. -- Friend"less*ness, n.
   [1913 Webster]

WordNet (r) 3.0 (2006):

friendless
    adj 1: excluded from a society [syn: friendless, outcast]

The Devil's Dictionary (1881-1906):

FRIENDLESS, adj.  Having no favors to bestow.  Destitute of fortune.
Addicted to utterance of truth and common sense.