One that drifts, especially a person who moves aimlessly from place to place or from job to job.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "drifter" in a sentence
"It is basically what we call a drifter slope mine."
"A depressed drifter is even unhappier when it is a sunny day and everyone is having fun."
"The author never indicates how this drifter from a vagabond existence came to live in a modest upper middleclass neighborhood with no steady income (dollhouses?)."