ineffable
[adjective]
Synonyms: unutterable, incommunicable, indefinable, indescribable, inenarrable, inexpressible, undescribable, unexpressible, unspeakable, untellable

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Contrasted words: expressible, utterable
Related Words: celestial, empyreal, empyrean, heavenly, ethereal, divine, holy, sacred, spiritual, abstract, ideal, transcendent, transcendental

[TahlilGaran] English Synonym Dictionary ▲

in‧ef‧fa‧ble /ɪnˈefəbəl/ adjective formal
[Date: 1400-1500; Language: French; Origin: Latin ineffabilis, from effari 'to speak out']
too great to be described in words Synonym : indescribable:
ineffable joy
—ineffably adverb

[TahlilGaran] Dictionary of Contemporary English ▲