blank look on (one's) face(redirected from blank look on their faces)
blank look on (one's) face
A facial expression with no emotional articulation, usually implying befuddlement, incomprehension, or being overwhelmed by something. I tried to explain to him why what he did was wrong, but he just sat there staring at me with that blank look on his face. Claire carried a blank look on her face for weeks after the traumatic accident.