/ Dictionary / Index D decretist: Meaning and Definition of Find definitions for: de•cre•tist Pronunciation: (di-krē'tist), [key] — n. a student in the faculty of law. a student of the Decretals; expert in the canon law. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decretal decretive Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language