Breadcrumb Home > Dictionary > Index A atheism: Meaning and Definition of Find definitions for: a•the•ism Pronunciation: (ā'thē-iz"um), [key] — n. the doctrine or belief that there is no God. disbelief in the existence of a supreme being or beings. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: atheism (Thesaurus) Atharva-Veda atheist TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census 50 Spookiest Halloween Quotes Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: effete Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language