/ Dictionary / Index F fanatic: Meaning and Definition of Find definitions for: fa•nat•ic Pronunciation: (fu-nat'ik), [key] — n. a person with an extreme and uncritical enthusiasm or zeal, as in religion or politics. —adj. fanatical. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fanatic (Thesaurus) Fanakalo fanatical Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language