/ Dictionary / Index U Upanishad: Meaning and Definition of Find definitions for: U•pan•i•shad Pronunciation: (-pan'i-shad", -pä'ni-shäd"), [key] — n. Hinduism. any of a class of speculative prose treatises composed between the 8th and 6th centuriesb.c.and first writtena.d.c1300: they represent a philosophical development beyond the Vedas, having as their principal message the unity of Brahman and Atman. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: upanishad (Thesaurus) up-and-down upas Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language