1) The state of being out of touch lost, never present when needed useless; 2) never informed, the last to learn everything; the person who is last to know, last to understand, last to catch on dull.
All of Bill's family attended his graduation except, of course, his father, who is omni-absent.
by Rowena Kelly Qualls September 18, 2006
1 more definition
Not being anywhere ever.
Nothing is omniabsent.
by Kid Ickirus February 08, 2007