| Rating | Solver | Clue |
|---|---|---|
| UNRELENTING | Implacable | |
| UNFLINCHING | Implacable | |
| UNPLACABLE | Implacable. | |
| IMPLACABLY | In an implacable manner. | |
| DEADLY | In an implacable manner; destructively. | |
| IMPLACABLENESS | The quality of being implacable; implacability. | |
| IMPLACABILITY | The quality or state of being implacable. | |
| INCENSEMENT | Fury; rage; heat; exasperation; as, implacable incensement. | |
| INEXPIABLE | Incapable of being mollified or appeased; relentless; implacable. | |
| IRRECONCILABLE | Not reconcilable; implacable; incompatible; inconsistent; disagreeing; as, irreconcilable enemies, statements. | |
| IMPLACABLE | Not placable; not to be appeased; incapable of being pacified; inexorable; as, an implacable prince. | |
| FIEND | An implacable or malicious foe; one who is diabolically wicked or cruel; an infernal being; -- applied specifically to the devil or a demon. | |