| steady(adjective, firm, intense, deliberate, determined) |
| stiff-necked(adjective, determined, resolute, uncompromising, unshakeable) |
| sturdy |
| tough(adjective, resolute, tenacious) |
| true(adjective, resolute, tenacious) |
| unfaltering(adjective, firm, intense, deliberate, determined) |
| unflinching(adjective, strong, firm, serious, resolute) |
| unrelenting(adjective, determined, resolute, uncompromising, unshakeable) |
| unswerving(adjective, determined, resolute, uncompromising, unshakeable) |
| valiant(adjective, resolute, brave) |
| balking |
| brave(adjective, energetic, determined, noble, forceful) |
| contumacious |
| devoted(adjective, resolute, tenacious) |
| earnest(adjective, firm, certain, serious, resolute) |
| fearless(adjective, energetic, determined, noble, resolute) |
| forceful(adjective, strong, tough, firm, energetic) |
| gutsy(adjective, tough, energetic, determined, noble) |
| gutty(vigorous, noble, stout, courageous, heroic) |
| hard as nails(expression, idiom, serious, resolute, persistent) |