Main Page | See live article | Alphabetical index To say that something is "Ineffable" means that it is unspeakable. "Whereof one cannot speak, thereof one must be silent." - Ludwig Wittgenstein Things that are said to be unspeakable include: The Tetragrammaton (by orthodox Jewish tradition) The nature of qualia The nature of many spiritual experiences This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.