| gritty(adjective, energetic, steady, resolution, resolute) |
| recalcitrant(adjective, tough, firm, persistent, obstinate) |
| stiff-necked(adjective, firm, deliberate, usual, regular) |
| undaunted(adjective, tenacious) |
| unfailing(adjective, good, strong, firm, honest) |
| verified(verb, proved, ascertained, experimented) |
| zealous(adjective, clear, tough, severe, keen) |
| ambitious(adjective, success, interested, obsessed, promising) |
| calculated(verb, set, deliberate, fixed, resolute) |
| certified(verb, evinced, proved, ascertained) |
| compulsive |
| contumacious(adjective, tough, firm, persistent, obstinate) |
| convinced(verb, adjective, set, firm, precise) |
| definitive(adjective, resolution) |
| deliberate(adjective, set, severe, honest, intense) |
| destined(verb, adjective, clear, fixed, valid) |
| driven(adjective, resolute, attentive, absorbed, steadfast) |
| eager(adjective, clear, tough, severe, keen) |
| enthusiastic(adjective, keen, total, intense, energetic) |
| explicit(adjective, strong, plain, certain, definite) |