/ Dictionary / Index P presumptive heir: Meaning and Definition of Find definitions for: presump'tive heir' Pronunciation: [key] — Law. Law. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. presumptive presumptuous Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language