| crisp(adjective, definite) |
| deliberate(adjective, firm, determined, resolute, focused) |
| diligent(adjective, resolute, tenacious) |
| evidential |
| evidentiary |
| express(adjective, clear, certain, precise, sure) |
| fatal(adjective, important, critical) |
| flat |
| flat out(expression, adjective, plain, definite, precise) |
| forceful(adjective, clear, strong, firm, certain) |
| hard(adjective, clear, certain, sure, tenacious) |
| impressive(strong, great, extraordinary, important, powerful) |
| indomitable(adjective, resolute, tenacious) |
| insistent(adjective, set, firm, important, determined) |
| irrefragable(adjective, certain, definite, precise, sure) |
| irrevocable(set, definite, precise, sure, absolute) |
| persuasive |
| relentless(adjective, resolute) |
| single-minded(adjective, determined, serious, resolute, persistent) |
| steady(adjective, good, set, strong, honest) |