"Indicible" is a word in ENGLISH

The quality or state of being ineffable; ineffableness; unspeakableness.

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

The quality or state of being ineffable or unutterable; unspeakableness.

In a manner not to be expressed in words; unspeakably.

Not capable of expression or utterance in language; ineffable; unspeakable; indescribable; unutterable; as, inexpressible grief or pleasure.

In an inexpressible manner or degree; unspeakably; unutterably.

Those which have the value of independent words, inasmuch as the simple words are either not used at all, or …

To retract, as what has been spoken; to recant; to unsay.

Not speakable; incapable of being uttered or adequately described; inexpressible; unutterable; ineffable; as, unspeakable grief or rage.

Not utterable; incapable of being spoken or voiced; inexpressible; ineffable; unspeakable; as, unutterable anguish.