/ Dictionary / Index B blasphemy: Meaning and Definition of Find definitions for: blas•phe•my Pronunciation: (blas'fu-mē), [key] — pl. -mies. impious utterance or action concerning God or sacred things. an act of cursing or reviling God. pronunciation of the Tetragrammaton (yhvh) in the original, now forbidden manner instead of using a substitute pronunciation such as Adonai. the crime of assuming to oneself the rights or qualities of God. irreverent behavior toward anything held sacred, priceless, etc.: He uttered blasphemies against life itself. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: blasphemy (Thesaurus) blasphemous blast Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language