Source : Webster's Revised Unabridged Dictionary (1913)

Absentee \Ab`sen*tee"\, n.
   One who absents himself from his country, office, post, or
   duty; especially, a landholder who lives in another country
   or district than that where his estate is situated; as, an
   Irish absentee. --Macaulay.

Source : WordNet®

absentee
     n : one that is absent or not in residence