Synonyms for Kaput:

adj.

broken (adjective)
faulty, gone, shot, wrecked, out of order.
damaged (adjective)
flawed.
defunct (adjective)
dead.
done for (adjective)
beaten, broken, through, washed-up.
kaput (adjective)
destroyed, finished, done for.

n.

apart, faulty, wrecked, shot, flawed, battered, Trashed. ability, finished, through, start, over-the-hill, done, washed-up. kaput (noun)
destroyed, gone, done for.
ruined (noun)
beaten, broken, defunct, out of order, dead.

Other synonyms:

Trashed, wrecked. broken, faulty, flawed, washed-up. done. finished. apart. ruined
shot.
Other relevant words:
dead, out of order, flawed, destroyed, washed-up, apart, through, faulty, defunct, finished, Trashed, shot, wrecked, done, broken.