Her absent-minded husband forgot their anniversary.
My mother's so absent-minded she not only losses her keys also forgets where she parked her car.
You've been very absent-minded lately in class forgetting your homework and staring into space. Is there something going on at home that I should know about?
I've been very absent-mined since my wife had a baby.
My parents are completely different. My father is focused and attentive while my mother is absent-minded.