formal: dead, deceased—often used as a euphemistic or humorous alternative to dead
A shovel, bucket, trash bags, and gloves are also useful items for cleaning up expired wildlife. Jeffrey Price and Jeffrey Forrest… I've exercised my maternal instincts on him, doing a far better job of keeping him alive than all those expired plants now in the great compost pile in the sky. Kerry QuinnThere, firmly lodged within the pipe and obstructing the flow of water, was a catfish. The expired creature was removed, brought on board, and mounted in the main passenger cabin for all to see. John Laurence Busch
2
: no longer valid : having exceeded its period of validity
expired licenses
an expired contract
… Mr. Adams uses homemade software to download online books with expired copyrights … Michael M. Phillips