blank stare
A facial expression characterized by a lack of emotion, understanding, or focus. Suggests confusion, desinterest or even that a character isn't thinking about anything.
Common features of a blank stare are a expressionless stare, empty eyes and wide eyes.
Examples
- Danbooru post #8804447: distracted
- Danbooru post #5648170: confused
- Danbooru post #8692058: emotionless
- Danbooru post #9258309: unamused