utterless

Adjective

utterless (not comparable)

1. (archaic, literary) Incapable of being uttered.
   • Tis true, an adultres cannot be sham’d anough by any publick proceeding; but that woman whose honour is not appeach’t, is lesse injur’d by a silent dismission, being otherwise not illiberally dealth with, then to endure a clamouring debate of utterles things, in a busines of that civil secrecy and...1643, John Milton, The Doctrine and Discipline of Divorce, London, page 45
   • […] there is a noise
     Among immortals when a God gives sign,
     With hushing finger, how he means to load
     His tongue with the full weight of utterless thought,
     With thunder, and with music, and with pomp:1820, John Keats, Hyperion, Book 2, in Lamia, Isabella, The Eve of St. Agnes, and Other Poems, London: Taylor and Hessey, pp. 173-174

   Synonyms:

   ineffable, unutterable