Synonyms of unutterable

1. ineffable, unnameable, unspeakable, unutterable, sacred (vs. profane): usage: too sacred to be uttered; "the ineffable name of the Deity"
2. indefinable, indescribable, ineffable, unspeakable, untellable, unutterable, inexpressible (vs. expressible), unexpressible: usage: defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor"
3. unpronounceable, unutterable, uncommunicative (vs. communicative), incommunicative: usage: very difficult to pronounce correctly; "an unpronounceable foreign word"; "unutterable consonant clusters"