| in second childhood(expression, idiom, enervated, senescent, irresilient) |
| infecund(enervated, senescent, irresilient) |
| invalid(enervated, senescent, irresilient) |
| irresilient(enervated, senescent, wornout) |
| irresolute(adjective, uncertain, feeble, shaky, hesitant) |
| laid low(expression, enervated, senescent, irresilient) |
| meager(weak, thin, frail) |
| not young(expression, enervated, senescent, irresilient) |
| oldish(enervated, senescent, irresilient) |
| on the blink |
| over the hill(expression, idiom, enervated, senescent, irresilient) |
| overrefined(degenerate, enervated, senescent, irresilient, unchaste) |
| overripe(degenerate, enervated, senescent, irresilient, unchaste) |
| scrawny(adjective, uncertain, feeble, frail, puny) |
| senescent(enervated, irresilient) |
| sensile(enervated, senescent, irresilient) |
| sick as a dog(expression, idiom, enervated, senescent, irresilient) |
| sick as dog(expression, idiom, enervated, senescent, irresilient) |
| sidelined(enervated, senescent, irresilient) |
| sluggish(adjective, uncertain, feeble, shaky, hesitant) |