unintelligible
//ˌʌnɪnˈtɛlɪdʒəbl//
Adjective
unintelligibleCanonical form
more unintelligibleComparative
most unintelligibleSuperlative
1
Impossible to understand or comprehend; not intelligible.
His speech was unintelligible due to the poor audio quality.
2
(of speech or writing) Not clear enough to be understood or deciphered.
The handwriting was so messy that it was completely unintelligible.