| incapacitated(adjective, weak, inadequate, incompetent, inept) |
| insubstantial(adjective, uncertain, feeble, shaky, hesitant) |
| irresilient(enervated, senescent) |
| lackadaisical(adjective, uncertain, feeble, shaky, hesitant) |
| lacking force(expression, idiom) |
| laid low(expression, enervated, senescent, irresilient) |
| languid(adjective, uncertain, feeble, shaky, hesitant) |
| languorous(adjective, uncertain, feeble, shaky, hesitant) |
| lapsed(adjective, unsanctioned) |
| lax |
| livid(adjective, dim, white, colorless, pallid) |
| not young(expression, enervated, senescent, irresilient) |
| old(enervated, senescent, irresilient) |
| oldish(enervated, senescent, irresilient) |
| on the ropes(expression, idiom, enervated, senescent, irresilient) |
| one-horse |
| out of condition(expression, idiom, enervated, senescent, irresilient) |
| out of shape(expression, idiom, enervated, senescent, irresilient) |
| over the hill(expression, idiom, enervated, senescent, irresilient) |
| overrefined(enervated, senescent, irresilient) |