| impotent(adjective, weak, thin, delicate, shaky) |
| impuissant(adjective, weak, uncertain, feeble, hesitant) |
| inadequate(adjective, weak, thin, delicate, short) |
| incompetent(adjective, weak, thin, delicate, shaky) |
| indecisive(adjective, weak, thin, delicate, shaky) |
| indifferent(adjective, beat, gloomy, sick, depressed) |
| ineffectual(adjective, weak, thin, delicate, shaky) |
| inefficient(adjective, weak, thin, delicate, shaky) |
| infirm(adjective, weak, thin, delicate, uncertain) |
| insubstantial(adjective, weak, thin, delicate, uncertain) |
| insufficient(adjective, weak, thin, delicate, shaky) |
| knocked out(expression, adjective, beat, useless, weary) |
| lackadaisical(adjective, uncertain, feeble, tired, frail) |
| lame(adjective, weak, thin, delicate, shaky) |
| limp(adjective, uncertain, feeble, tired, hesitant) |
| low(adjective, weak, thin, delicate, shaky) |
| makeshift(adjective, uncertain, feeble, shaky, hesitant) |
| not strong(expression, adjective, weak, uncertain, feeble) |
| old(beat, weary, tired, shabby, enervated) |
| on the ropes(expression, idiom, exhausted, limp, weakened) |