Breadcrumb Home > Dictionary > Index L Cite looney: Meaning and Definition of Find definitions for: loon•ey Pronunciation: (l'nē), [key] — n., pl. loon•i•er, loon•i•est, loon•eys, loon•ies. loony. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: looney (Thesaurus) loon loony TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News Mardi Gras “High Crimes and Misdemeanors:” A Short History of Impeachment Noble Titles and Ranks in a Monarchy Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: odaysuiz Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language