/ Dictionary / Index F foundrous: Meaning and Definition of Find definitions for: foun'drous Pronunciation: (foun'drus), [key] — adj. founderous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. foundress foundry Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language