[ uhn-spee-kuh-buhl ]
/ ʌnˈspi kə bəl /


not speakable; that may not be spoken.
exceeding the power of speech; unutterable; inexpressible; indescribable.
inexpressibly bad or objectionable.

Origin of unspeakable

1350–1400; Middle English unspekeabill. See un-1, speakable
Related formsun·speak·a·ble·ness, nounun·speak·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for unspeakable

British Dictionary definitions for unspeakable


/ (ʌnˈspiːkəbəl) /


incapable of expression in wordsunspeakable ecstasy
indescribably bad or evil
not to be utteredunspeakable thoughts
Derived Formsunspeakableness, noununspeakably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for unspeakable



c.1400, "inexpressible," from un- (1) "not" + speakable (see speak). Meaning "indescribably bad or wicked" is recorded from 1831. Related: Unspeakably.

Online Etymology Dictionary, © 2010 Douglas Harper