| Rating | Solver | Clue |
|---|---|---|
| UNACCEPTABLE | Unendurable | |
| INTOLERABLE | Unendurable | |
| UNSUPPORTABLE | Insupportable; unendurable. | |
| IMPATIENT | Not to be borne; unendurable. | |
| IMPORTUNATE | Hard to be borne; unendurable. | |
| CARBAMINE | An isocyanide of a hydrocarbon radical. The carbamines are liquids, usually colorless, and of unendurable odor. | |
| INSUPPORTABLE | Incapable of being supported or borne; unendurable; insufferable; intolerable; as, insupportable burdens; insupportable pain. | |
| INSUFFERABLE | Incapable of being suffered, borne, or endured; insupportable; unendurable; intolerable; as, insufferable heat, cold, or pain; insufferable wrongs. | |