| shingly(adjective, pebbly, flinty) |
| sick(adjective, mean, weak, thin, offensive) |
| tottering(adjective, mean, weak, doubtful, unsettled) |
| tottery(adjective, weak, unstable, unsettled, shaky) |
| unsound(adjective, weak, delicate, uncertain, sensitive) |
| ailing(adjective, health, mean, weak, thin) |
| cragged(adjective, rough, harsh, coarse, irregular) |
| doubtful(adjective, weak, delicate, uncertain, unstable) |
| dubious(adjective, weak, delicate, uncertain, sensitive) |
| flimsy(adjective, uncertain, inadequate, feeble, useless) |
| granitic |
| ill(adjective, mean, weak, thin, sick) |
| indisposed(adjective, health, mean, weak, sick) |
| inflexible(adjective, set, strong, hard, firm) |
| insensitive(adjective, inflexible, unyielding) |
| jumpy(adjective, trembling, shaking, vibrating) |
| off-color(adjective, health, mean, weak, thin) |
| rock-ribbed(adjective, rugged, stony) |
| steady(adjective, inflexible, unyielding) |
| steely(adjective, firm, rigid, unyielding) |