adjective. Incapable of being expressed; indescribable or unutterable.

adjective. Not to be uttered; taboo.

Incapable of being expressed in words; unspeakable; unutterable; inexpressible: as, the ineffable joys of heaven; ineffable disgust.

That must not be spoken: as, the ineffable name. See Jehovah.

noun. plural Trousers.

noun. One who is not to be named; one who is too high in his profession or in the fashionable world to be named with others.

adjective. Incapable of being expressed in words; unspeakable; unutterable; indescribable.

adjective. Beyond expression in words; unspeakable.

adjective. Forbidden to be uttered; taboo.

adjective. too sacred to be uttered

adjective. defying expression or description