Which word can I use to describe a smile which someone gives after making a stupid mistake?
I want to describe the smile of a TV news anchor, when the camera catches her combing her hair.
Answer
It would very often be described as a sheepish smile.
(of a person or expression) Showing embarrassment from shame or a lack of self-confidence
e.g. – a sheepish grin.
Attribution
Source : Link , Question Author : shampa , Answer Author : FumbleFingers
