(a.) Incapable of being expresses in words; unspeakable; unutterable; indescribable; as, the ineffable joys of heaven\.

abstract awesome awful celestial divine empyreal empyrean ethereal exceptional extraordinary fabulous heavenly holy ideal incommunicable indefinable indescribable inenarrable inexpressible innominable inviolable inviolate legendary marvelous mythical noncommunicable noteworthy numinous phenomenal portentous prodigious religious remarkable sacred sacrosanct spiritual stupefying stupendous transcendent transcendental undefinable unexampled unmentionable unnameable unparalleled unprecedented unspeakable untellable untouchable unutterable unwhisperable venerable wonderful