/ Dictionary / Index N nullifidian: Meaning and Definition of Find definitions for: nul•li•fid•i•an Pronunciation: (nul"u-fid'ē-un), [key] — n. a person who has no faith or religion; skeptic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nullification nullify Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language