unintelligible
/ˌʌnɪnˈtɛlədʒəbəl/
adjective
- Impossible to understand because it is not clear, not loud enough, or not well-formed.
- The old recording was scratchy and almost unintelligible.
- His speech was so quiet and fast that it was unintelligible.
- The doctor's handwriting was completely unintelligible.
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