The Collaborative International Dictionary
Absentness
Absentness \Ab"sent*ness\, n.
The quality of being absent-minded.
--H. Miller.
Wiktionary
absentness
n. The quality of being absent-minded. (First attested in the mid 19th century.)(R:SOED5: page=8)
Usage examples of "absentness".
Ever since this started, this absentness, this detachment, I have tried to urge the few friends whom I know he loved most to see him.