Ineffable is an adjective which means too great or extreme to be expressed with words (for example : `the ineffable harmony of Samuel Barber’s Adagio for Strings` ). The prefix - `in` implies the negative, and effabilis from the Latin portrays that a subject can be uttered or spoken. At first this word seems to be a solitary or lonely word with no obvious relations to other words, however with a little intuition and using other references, the suffix is quite probably made up from another interesting word :- fable. So it is quite clear that fables, being a sort of opposite, can certainly be uttered, and looking into the meaning of this opposite, a fable can necessitate a lengthy description or story with a moral perspective. Since fable also often implies elements of myth and legend, this lends sacred connotations, thus ineffable also means, too sacred to be spoken or uttered. Alternatively, my personal opinion is that electric guitars with active circuitry also exhibit an ineffable quality. Judge for yourself with the embedded audio file on this page which features my own version of Adagio for Strings, recorded last year using distortion and active circuitry through the desk. Another funny thing about virtually all guitars is that most of the time they sound better than they look, and if they are not being played effectively they would be considered as an intangible asset. It is only when listening that a guitar or any other musical instrument becomes tangible, particularly if you are playing it and listening to it simultaneously.