Adjective
inenarrable (comparative more inenarrable, superlative most inenarrable)
(formal, literary) That cannot be told; indescribable, inexpressible, unspeakable.
Synonyms: unnarratable; see also Thesaurus:indescribable
Antonyms: (obsolete, rare) enarrable, explainable, expressible, narratable; see also Thesaurus:describable