ineffable
adjectiveUK /ɪnˈefəbl/
US /ɪnˈefəbl/
Too wonderful or big to describe with words.
She felt an ineffable joy when she saw the rainbow.
RELATED WORDS
OTHER MEANINGS
2. Too sacred or holy to be spoken aloud.
They stood in silence before the ineffable name.
3. So bad or extreme that words cannot express it.
The ineffable sadness of the empty house lingered for years.
4. Not allowed to be expressed or described.
The rules of the club were ineffable to outsiders.