/ Dictionary / Index A antiunion: Meaning and Definition of Find definitions for: an•ti•un•ion Pronunciation: (an"tē-yn'yun, an"tī-), [key] — adj. opposed to trade unions or unionism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antitype antiutopia Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language