She led a blameless, unoccupied, and apparently purposeless life.
She spied an unoccupied seat, looked at her watch, and sat down.
There is not an unoccupied chair or corner of a table to be found.
All that he had to do was to find an unoccupied table and settle down to work.
He swept it about the room, to make sure that it was unoccupied.
The chair next to ours happened ...