too sacred to be uttered; the ineffable name of the Deity

[ Syn: ineffable , unnameable , unspeakable ]

defying expression or description; indefinable yearnings; indescribable beauty; ineffable ecstasy; inexpressible anguish; unspeakable happiness; unutterable contempt; a thing of untellable splendor

[ Syn: indefinable , indescribable , ineffable , unspeakable , untellable ]

very difficult to pronounce correctly; an unpronounceable foreign word; unutterable consonant clusters

[ Syn: unpronounceable ]