Inexpressible

a.

1.

Not capable of expression or utterance in language; ineffable; unspeakable; indescribable; unutterable; as, inexpressible grief or pleasure. In orbs Of circuit inexpressible they stood. - Milton.

Adj.

1.

inexpressible - defying expression Synonyms: unexpressible Antonyms: expressible - capable of being expressed; "an expressible emotion"

awesome, awful, divine, heavenly, holy, incommunicable, indefinable, indescribable, ineffable, inenarrable, innominable, inviolable, inviolate, noncommunicable, numinous, religious, sacred, sacrosanct, spiritual, undefinable, unmentionable, unnameable, unspeakable, untellable, untouchable, unutterable, unwhisperable, venerable