vagabond

Short definition from Wiktionary

Noun

1. 1
   A person on a trip of indeterminate destination and/or length of time.
2. 2
   One who usually wanders from place to place, having no fixed dwelling, or not abiding in it, and usually without the means of honest livelihood.

Verb

1. 1
   To roam, as a vagabond

Adjective

1. 1
   Floating about without any certain direction; driven to and fro.