roamer

from WordNet (r) 3.0 (2006)

roamer
    n 1: someone who leads a wandering unsettled life [syn:
         {wanderer}, {roamer}, {rover}, {bird of passage}]

from The Collaborative International Dictionary of English v.0.48

Roamer \Roam"er\ (r[=o]m"[~e]r), n.
   One who roams; a wanderer.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

32 Moby Thesaurus words for "roamer":
      Ahasuerus, Ancient Mariner, Argonaut, Flying Dutchman, Goliard,
      Odysseus, Oisin, Ossian, Ulysses, bird of passage, drifter,
      floater, gad, gadabout, go-about, itinerant, mover, peregrinator,
      peregrine, peripatetic, rambler, rolling stone, rover, runabout,
      straggler, stroller, strolling player, troubadour, visitant,
      wanderer, wandering minstrel, wandering scholar