0 in a way whose meaning is not clear or is difficult to understand: --
She was mumbling inarticulately.
He uses words inarticulately.
Media people found a confused jumble of inarticulately expressed ideas.
How come you pronounce words so inarticulately?
They tried - inarticulately and unsuccessfully - to explain the new policy.
He inarticulately tried to repeat what he’d been told to say.
I was inarticulately trying to convey my sense of impending doom.