Breadcrumb Home > Dictionary > Index A autumnal: Meaning and Definition of Find definitions for: au•tum•nal Pronunciation: (ô-tum'nl), [key] — adj. belonging to or suggestive of autumn; produced or gathered in autumn: autumnal colors. past maturity or middle life. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: autumnal (Thesaurus) autumn autumnal equinox 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 Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: bildungsroman Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language