| Rating | Solver | Clue |
|---|---|---|
| INABILITY | Incapability | |
| IMMISCIBILITY | Incapability of being mixed, or mingled. | |
| INCAPABLENESS | The quality or state of being incapable; incapability. | |
| INCORRUPTIBILITY | The quality of being incorruptible; incapability of corruption. | |
| UNSUFFERING | Inability or incapability of enduring, or of being endured. | |
| IRREFRAGABILITY | The quality or state of being irrefragable; incapability of being refuted. | |
| INCAPABILITY | Want of legal qualifications, or of legal power; as, incapability of holding an office. | |
| INFUSIBILITY | Incapability or difficulty of being fused, melted, or dissolved; as, the infusibility of carbon. | |