Used to describe something that is not used effectively or is squandered. The wasted resources could have been utilized to help those in need.
Describing a person who is extremely intoxicated by alcohol or drugs. He was so wasted at the party that he couldn't even remember how he got home.
Describing a place or area that is desolate or barren. The once vibrant town now lay in a wasted state after the economic collapse.
Describing a body or part of the body that is emaciated or weakened. After months of illness, his body appeared wasted and frail.