Breadcrumb Home > Dictionary > Index M Cite mind-altering: Meaning and Definition of Find definitions for: mind-al•ter•ing Pronunciation: (m?nd'l"tur-ing), [key] ? adj. causing marked changes in patterns of mood and behavior, as a hallucinogenic drug. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. See also: mindaltering (Thesaurus) mind Mindanao TrendingHere are the facts and trivia that people are buzzing about. February 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 The Manchu Related Content Daily Word Quiz: puerile Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language