| Word | Definitions | Synonyms |
|---|---|---|
| unutterable | (adjective) defying expression or description | Synonyms: indefinable, indescribable, ineffable, unspeakable, untellable |
| (adjective) too sacred to be uttered | Synonyms: ineffable, unnameable, unspeakable | |
| (adjective) very difficult to pronounce correctly | Synonyms: unpronounceable | |
| unuttered | (adjective) not made explicit | Synonyms: unexpressed, unsaid, unspoken, unstated, unverbalised, unverbalized, unvoiced |