/ Dictionary / Index L longevous: Meaning and Definition of Find definitions for: lon•ge•vous Pronunciation: (lon-jē'vus, lôn-), [key] — adj. Archaic. long-lived; living to a great age. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. longevity long face Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language