| slack |
| worn-out(adjective, beat, hard, weak, feeble) |
| burned out |
| chicken(adjective, weak, thin, delicate, shaky) |
| crumbling(deterioration, dilapidated, decaying) |
| dissipated(adjective, exhausted, spoiled) |
| done(adjective, deterioration, finished, accomplished) |
| far-gone(adjective, dead, weary, exhausted, reduced) |
| flaccid(adjective, weak, uncertain, feeble, faint) |
| immoral(adjective, weak, corrupt, exhausted, debased) |
| ineffective(adjective, weak, inadequate, incompetent, inept) |
| languorous(adjective, uncertain, feeble, shaky, hesitant) |
| listless |
| obsolete(adjective, exhausted, spoiled, inutility) |
| overripe(adjective, weak, corrupt, degenerate, rotten) |
| sapped(beat, weak, dead, exhausted, reduced) |
| sickly(adjective, weak, weakness, thin, delicate) |
| spineless |
| spiritless |
| stale(adjective, beat, hard, useless, tired) |