done for

adjective

No longer effective, capable, or valuable: done, finished, through, washed-up. Informal kaput. Idioms: at the end of thelineroad, over the hill, past one's prime. See ability/inability, start/end.

1.  Exhausted, worn out, as in This old computer is just about done for. [Colloquial; c. 1800] Also see done in.
2.  Doomed to death or destruction, as in Before he went to the hospital it seemed as if he was done for. [Colloquial; mid-1800s]

Definition: beaten, defeated
Antonyms: accomplished, successful

The adjective has 2 meanings:

Meaning #1: (informal) destroyed or killed
  Synonyms: kaput, gone

Meaning #2: doomed to extinction
  Synonyms: ruined, sunk, undone, washed-up