incoherent

incoherent adjective uk/ˌɪnkəʊˈhɪərənt/ us
not using clear words or ideas, and difficult to understand

бессвязный
His statement to the police was rambling and incoherent . incoherence noun [ U ] uk/ˌɪnkəʊˈhɪərəns/ us

бессвязность