/ Dictionary / Index W Walter Mitty: Meaning and Definition of Find definitions for: Wal'ter Mit'ty Pronunciation: [key] — pl. Walter Mittys. an ordinary, timid person who is given to adventurous and self-aggrandizing daydreams or secret plans as a way of glamorizing a humdrum life. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Walter Waltham Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language