somnambulist

• She had got to dream while awake, and, like a somnambulist, to perform acts in a semi-unconscious state. —  Recollections of My Youth
• He looks just like a setter dog and he is so terribly in earnest that when he fixes me with his eyes and plays at me, the court ladies all get up and move their chairs out of his way just as though he were a somnambulist -- —  Adventures and Letters of Richard Harding Davis
• Mrs Bracken, like a somnambulist, drifted around picking up cups from one place only to put them down in another. —  Come To Grief
• Thin and sickly-looking at present, he had the air of a somnambulist, asleep with his eyes open, oblivious of the questions put to him, and unable to answer when asked: "What are you thinking of? —  Balzac
• "Do you -- do you see something that I don't?" —  The Silicon Mage

Allen's Synonyms and Antonyms

Used in the Same Context