| intent(adjective, strong, flat, intense, certain) |
| single-minded(adjective, keen, firm, sensible, solid) |
| tough(adjective, calm, clear, strong, severe) |
| dead in the water |
| indomitable(adjective, strong, determined, vigorous, noble) |
| pertinacious(adjective, tough, firm, determined, resolute) |
| stalwart(adjective, calm, strong, tough, keen) |
| diligent(adjective, resolute, persevering, tenacious) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| intransigent(adjective, determined, resolute, obstinate, stubborn) |
| trustworthy(adjective, good, close, strong, correct) |
| trusty(adjective, good, close, strong, correct) |
| undaunted(adjective, bold, brave, tenacious) |
| unfailing(adjective, good, strong, honest, solid) |
| untiring |
| brave(adjective, clear, tough, severe, determined) |
| decided(adjective, firm, intense, certain, deliberate) |
| definite(adjective, good, strong, complete, easy) |
| secure(verb, adjective, calm, strong, firm) |
| stern(adjective, firm, resolute, persistent, rigid) |