Ineffable
Pronunciation : In*ef"fa*ble
Part of Speech : a.
Etymology : [L. ineffabilis: cf. F. ineffable. See In- not, and Effable, Fame.]
Definition : Defn: Incapable of being expresses in words; unspeakable; unutterable; indescribable; as, the ineffable joys of heaven. Contentment with our lot . . . will diffuse ineffable contenBeattie.
Source : Webster's Unabridged Dictionary, 1913