Breadcrumb Home > Dictionary > Index L Cite Lethe: Meaning and Definition of Find definitions for: Le•the Pronunciation: (lē'thē), [key] — n. a river in Hades whose water caused forgetfulness of the past in those who drank of it. (usually l.c.) forgetfulness; oblivion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: lethe (Thesaurus) Lethbridge lethiferous TrendingHere are the facts and trivia that people are buzzing about. April 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World Quetzalcoatl: Aztec Myths and Myths About the Aztecs Related Content Daily Word Quiz: mantra Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language