incomprehensible
slurred
thick
uncomprehensible
Greek to one
ambiguous
amphibological
beyond understanding
blind
equivocal
fathomless
hidden
impenetrable
inarticulate
incognizable
incoherent
inconceivable
inexplicable
inscrutable
numinous
opaque
past comprehension
rambling
tenebrous
uncertain
unclear
unconnected
unfathomable
unknowable
unsearchable
vague
absurd
confuse
contradictory
guttural
illogical
impracticable
inaudible
indistinct
meaningless
pointless
unreal
unsatisfactory
useless
eligible
intelligible
clear