/ Dictionary / Index P plenitudinous: Meaning and Definition of Find definitions for: plen•i•tu•di•nous Pronunciation: (plen"i-td'n-us, -tyd'-), [key] — adj. characterized or marked by plenitude. stout or portly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. plenitude pleno jure* Related Content Daily Word Quiz: serendipity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language