unfluent
/ʌnˈflʊʒənt/Definitions
1. adjective
having a poor flow of speech or writing, often due to a lack of fluency or coherence.
“The professor’s unfluent explanation of the complex theory left the students confused.”
2. noun
a person or thing that is characterized by poor flow of speech or writing.
“The unfluent speaker’s words fell flat on the audience.”