unspeakable
Americanadjective
-
not speakable; that may not be spoken.
-
exceeding the power of speech; unutterable; inexpressible; indescribable.
- Synonyms:
- unimaginable, ineffable
-
inexpressibly bad or objectionable.
adjective
-
incapable of expression in words
unspeakable ecstasy
-
indescribably bad or evil
-
not to be uttered
unspeakable thoughts
Other Word Forms
Etymology
Origin of unspeakable
1350–1400; Middle English unspekeabill. See un- 1, speak ( def. ), -able ( def. )
Explanation
Something that's unspeakable can't be accurately put into words, like the unspeakable sadness of losing your beloved cat. You can use this adjective for things that can't be spoken or articulated, including the unspeakable joy of reuniting with your lost cat or certain unspeakable swear words that aren't allowed at school. But it's most often used to capture a feeling of horror that remains inexpressible even when people try to talk about it. The unspeakable evil of genocide is one example; when we can't comprehend why it happens, it's impossible to describe in words.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In a statement, its CEO Andrew Judd described Bush's crimes as "deeply shocking" and said families in Hull had been let down by "his unspeakable actions."
From BBC ● Aug. 1, 2026
Speaking about what was previously unspeakable helped him cope with his trauma.
From Los Angeles Times ● Jul. 26, 2026
Asked about the lawsuit, OpenAI told AFP: "What happened in Tumbler Ridge was an unspeakable tragedy."
From Barron's ● Mar. 10, 2026
Maybe someone down at the petrol station, to which William keeps sneaking to mollify his insatiable chocolate addiction and where local people do unspeakable things with the gas pumps.
From The Wall Street Journal ● Feb. 12, 2026
Every feeling, and with the sense that they’d been stripped down to their essence, revealed for the first time in all their unspeakable beauty, their unbearable fragility.
From "Strange the Dreamer" by Laini Taylor
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.