Then he stops, and with more of those inarticulate sounds, lifts up his eyes and seems to stare at something.
Something frozen and fixed is upon his manner, over and above its usual shell of haughtiness, and Mr. Bucket soon detects an unusual slowness in his speech, with now and then a curious trouble in beginning, which occasions him to utter inarticulate sounds.
There are no more uses of "inarticulate" in the book.
Show samples from other sources
She becomes inarticulate when she’s nervous.
She seemed uninformed and inarticulate compared to her opponent in the debate.