/ Dictionary / Index F flustrated: Meaning and Definition of Find definitions for: flus•trat•ed Pronunciation: (flus'trā-tid) [key] — adj., flustered; agitated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fluster flute Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language