incoherent
adjective
[ ɪnkə(ʊ)ˈhɪər(ə)nt ]
• (of spoken or written language) expressed in an incomprehensible or confusing way; unclear.
• "he screamed some incoherent threat"
Similar:
unclear,
confused,
muddled,
unintelligible,
incomprehensible,
hard to follow,
disjointed,
disconnected,
unconnected,
disordered,
mixed up,
garbled,
jumbled,
scrambled,
rambling,
wandering,
discursive,
disorganized,
uncoordinated,
illogical,
inarticulate,
mumbled,
muttered,
stuttered,
stammered,
slurred,
inchoate,
• (of waves) having no definite or stable phase relationship.