Breadcrumb Home > Dictionary > Index B brainy: Meaning and Definition of Find definitions for: brain•y Pronunciation: (brā'nē), [key] — brain•i•er, brain•i•est. intelligent; clever; intellectual. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: brainy (Thesaurus) brainwork braird TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: geoduck Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language