undescribable
/ˌʌndɪˈskraɪbəbəl/
adjective
- Impossible to describe or express in words, often because of being extremely good, bad, or unusual.
- The beauty of the sunset was undescribable; no photo could capture it.
- The pain from the injury was undescribable, and he could only groan.
- She felt an undescribable joy when she saw her family after years apart.
Antonyms