/ Dictionary / Index M miffed: Meaning and Definition of Find definitions for: miffed Pronunciation: (mift), [key] — adj. put into an irritable mood, esp. by an offending incident: I was miffed when they didn't invite me to the party. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: miffed (Thesaurus) miff Mifflin 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