unutterable
adjectiveUK /ʌnˈʌtərəbl/
US /ʌnˈʌtərəbl/
Too big or strong to put into words.
She felt unutterable joy when she saw her puppy again.
RELATED WORDS
OTHER MEANINGS
2. Too bad or shocking to talk about.
The villagers suffered unutterable cruelty during the war.
3. Completely silent or unable to speak.
He sat in unutterable stillness, watching the stars.
4. So great that it cannot be expressed in speech.
The mountain view filled them with unutterable awe.