vagrant

Adjective

• continually changing especially as from one abode or occupation to another
  • a drifting double-dealer
    
  • the floating population
    
  • vagrant hippies of the sixties
    

Noun

• a wanderer who has no established residence or visible means of support

Related words

• Synonyms: 
  aimless , drifting , floating , vagabond , drifter , floater