/ Dictionary / Index M missish: Meaning and Definition of Find definitions for: miss•ish Pronunciation: (mis'ish), [key] — adj. prim; affected; prudish. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. missis Mississauga Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language