/ Dictionary / Index P prosaist: Meaning and Definition of Find definitions for: pro•sa•ist Pronunciation: (prō-zā'ist), [key] — n. a person who writes prose. a prosaic, dull, or commonplace person. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prosaism pros and cons Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language