/ Dictionary / Index N nonunion: Meaning and Definition of Find definitions for: non•un•ion Pronunciation: (non-yn'yun), [key] — adj. not belonging to a labor union: nonunion workers. not recognizing or accepting a labor union or union policy: a nonunion factory. not manufactured by labor union workers. antiunion. —n. failure of a broken bone to heal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonunion (Thesaurus) non-U nonunionism Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language