Synonyms for incoherent

modified

1. Not hanging together

   loose, uneven, uncoordinated, inconsistent; see incongruous 1, irregular 1.

2. Inarticulate

   disjointed, rambling, confused, muddled, unintelligible, broken, disconnected, disorganized, illogical, garbled, mumbling, stammering, maundering, speechless, uncommunicative, unclear, puzzling, indistinct, faltering, stuttering, muttered, mumbled, jumbled, gasping, breathless, tongue-tied, muffled, indistinguishable, incomprehensible; see also dumb 1, 2, obscure 1.

   Antonyms clear*, eloquent, distinct.