nonuser
non·us·er
(nŏn-yo͞o′zər)n.
One who refrains from the use of something, as of narcotic drugs or alcohol.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
nonuser
(ˌnɒnˈjuːzə)n
a person who does not use a specified item or substance, predominantly an illegal drug
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
non•us•er
(nɒnˈyu zər)n.
a person who does not use or partake of something, as harmful drugs.
[1640–50]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.