from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Incapable of being expressed; indescribable or unutterable. See Synonyms at unspeakable.
- adj. Not to be uttered; taboo: the ineffable name of God.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Beyond expression in words; unspeakable.
- adj. Forbidden to be uttered; taboo.
from the GNU version of the Collaborative International Dictionary of English
- adj. Incapable of being expressed in words; unspeakable; unutterable; indescribable.
from The Century Dictionary and Cyclopedia
- 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.
- n. plural Trousers.
- n. 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. too sacred to be uttered
- adj. defying expression or description
Middle English, from Old French, from Latin ineffābilis : in-, not; see in-1 + effābilis, utterable (from effārī, to utter : ex-, ex- + fārī, to speak; see bhā-2 in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)
First attested in 1450. From Middle French ineffable, from Latin ineffābilis, from in- ("not") + effor ("utter"). (Wiktionary)