| workaholic |
| heedful(adjective, attentive, thorough, meticulous, vigilant) |
| alert(adjective, keen, intense, energetic, lively) |
| business-minded |
| determined(adjective, resolute, tenacious) |
| eager(adjective, strong, keen, intense, energetic) |
| faithful(adjective, certain, careful, resolute, reliable) |
| intense(adjective, strong, complete, severe, passionate) |
| observant(adjective, attentive, vigilant) |
| occupied(adjective, active, absorbed, working, engaged) |
| steady(adjective, resolute) |
| unwavering(adjective, resolute) |
| enduring(adjective, tenacious) |
| expeditious(adjective, regular, quick, serious, competent) |
| fastidious(adjective, precise, thorough, meticulous, fastidious) |
| finicky(adjective, thorough, meticulous, fastidious, painstaking) |
| hard(adjective, strong, difficult, powerful, tedious) |
| indomitable(adjective, resolute, tenacious) |
| insistent(adjective, resolute, tenacious) |
| loyal(adjective, resolute) |