/ Dictionary / Index A antinuclear: Meaning and Definition of Find definitions for: an•ti•nu•cle•ar Pronunciation: (an"tē-n'klē-ur, -ny'-, an"tī- or, by metathesis, -kyu-lur), [key] — adj. opposed to the building, stockpiling, or use of nuclear weapons. opposed to the building or use of nuclear power plants: Antinuclear demonstrators picketed the power plant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antinovel antinucleon Related Content Daily Word Quiz: resilient Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language