utterless

Adjective

1. 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...
   • 1820, John Keats, Hyperion, Book 2, in Lamia, Isabella, The Eve of St. Agnes, and Other Poems, London: Taylor and Hessey, pp. 173-174, […] there is a noise Among immortals when a God gives sign, With hushing finger, how...
   • Thin lines of care about her mouth, And utterless longings in her eyes. - 1935, James Weldon Johnson, “If I Were Paris”, in Saint Peter Relates an Incident, Penguin, published 1993, page 59:

   Synonyms: ineffable unutterable