I have two unused vouchers for a free meal.
I am unused to the dark nights of the countryside.
Unused to city traffic.
Martha glanced over to the dresser and Dean's unused hairbrush.
Later, we complained about Janet's sloppy cleaning when we found traces of mud in an unused room.
All with unused envelopes I might add, all hidden beneath your undershorts?
None of those which fail to survive go unused.
They walked down and through an unused part of the dungeons.