Unoccupied means empty, with no one using or living in it. An unoccupied house has no furniture, no residents, and no signs of life inside. An unoccupied chair in a classroom is available for someone to sit in. An unoccupied parking space is open and waiting for a car.

The word combines “un” (meaning “not”) with “occupied” (meaning “filled” or “in use”). When a fort is unoccupied, no soldiers defend it. When a hotel room is unoccupied, no guest has checked in. You might notice that unoccupied buildings can look lonely or neglected, with dark windows and overgrown yards, because no one is there to care for them.

The word can also describe someone's time or attention. If your mind is unoccupied during a long car ride, you're not thinking about anything in particular. If your hands are unoccupied, you're not holding or doing anything with them. Teachers sometimes look for students whose hands are unoccupied to help pass out papers or carry supplies.