absentness
n.the state of not being in a place where you are expected to be. It can also describe a lack of attention or a feeling of being disconnected from what is happening around you.
n.the state or condition of being away from a place or person; also refers to a lack of mental presence or attentiveness. Often used in medical or psychological contexts to describe a trance-like state.
“The teacher noticed his frequent absentness during the final exams.”
“The doctor noted the patient's occasional absentness, where he would stare at the wall for several minutes without responding to questions.”
“While physical absentness from the office was tolerated, the manager was more concerned about the team's mental absentness, which led to several critical errors in the quarterly report.”