Not belonging to a labor union: nonunion plumbers.
Not recognizing or dealing with a labor union or employing union members: a nonunion shop.
The failure of a fractured bone to heal normally.
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.