/ Dictionary / Index M miffy: Meaning and Definition of Find definitions for: miff•y Pronunciation: (mif'ē), [key] — miff•i•er, miff•i•est. touchy; inclined to take offense. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mifflin Mifune 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