Pronunciation: (blas-fēm', blas'fēm), [key]
—v., -phemed, -phem•ing.
1. to speak impiously or irreverently of (God or sacred things).
2. to speak evil of; slander; abuse.
to speak irreverently of God or sacred things; utter impieties.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.