| flimsy(adjective, weak, delicate, uncertain) |
| infected(adjective, weak, sick, feeble) |
| lackluster(adjective, weak, thin, feeble) |
| laid low(expression, adjective, idiom, weak, weakness) |
| run down(expression, weak, sick, feeble) |
| unstable(adjective, sick, shaky, unwell) |
| vacillating(adjective, sick, unwell) |
| wavering(adjective, uncertain, sick, feeble) |
| dragging(adjective, weak, thin, sick) |
| laid-low(adjective, weak, thin, sick) |
| nauseated(weak, anxious, sick, feeble) |
| out of action(expression, adjective, idiom, weak, thin) |
| out of shape(expression, adjective, idiom, weak, thin) |
| pining(adjective, dull, weak, easy, thin) |
| sick as a dog(expression, idiom, weak, sick) |
| suffering(weak, gloomy, sick, feeble) |
| uncertain(adjective, anxious, sick, feeble) |
| unsubstantial(adjective, dull, light, weak, soft) |
| wobbly(adjective, uncertain, sick, feeble) |
| anile(sick, unwell) |