Inexpressibly bad or objectionable:
That cannot be described; beyond the power of description
(Rare) That cannot easily be pronounced
Not to be uttered; taboo:
That cannot be described
Find another word for inexpressible. In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for inexpressible, like: unspeakable, indefinable, indescribable, unutterable, impossible, incommunicable, ineffable, undescribable, beyond description (or words), defying description and words.