vagrant
(dated) A person who wanders from place to place; a nomad, a wanderer.
(specifically) A person without settled employment or habitation who usually supports himself or herself by begging or some dishonest means; a tramp, a vagabond.
Vagrans egista, a widely distributed Asian butterfly of the family Nymphalidae.
(biology, especially ornithology) An animal, typically a bird, found outside its species' usual range.
Wandering from place to place, particularly when without any settled employment or habitation.
Of or pertaining to a vagabond or vagrant, or a person fond of wandering.
(figurative) Moving without a certain direction; roving, wandering; also, erratic, unsettled.