- not communicable by utterance; unspeakable; beyond expression: unutterable joy.
- not utterable; not pronounceable: an unutterable foreign word.
Origin of unutterable
1580–90; un-1 + utterable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for unutterable
To his unutterable astonishment Andy rose and stepped between him and the door.Way of the Lawless
He held out his arms, but, to his unutterable surprise, the girl recoiled from him.Henry Dunbar
M. E. Braddon
She laid her hand upon it, and in a tone of unutterable tenderness said, 'Man-Steenie!'Heather and Snow
She saw a soul laid bare before her in all its unutterable vileness.
But he saw at last to the bottom of them; saw there unutterable sorrow and love.
- incapable of being expressed in words
Word Origin and History for unutterable
Online Etymology Dictionary, © 2010 Douglas Harper