/ Dictionary / Index F factitious disorder: Meaning and Definition of Find definitions for: facti'tious disor'der Pronunciation: [key] — Psychiatry. Psychiatry. any of various syndromes, as Münchausen syndrome, characterized by physical or psychological symptoms intentionally produced by a person and under voluntary control. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. factitious factitive Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language