| powerful(adjective, strong, tough, intense, energetic) |
| pushy(adjective, clear, tough, severe, keen) |
| red-hot(adjective, feeling, keen, warm, intense) |
| relentless(adjective, difficult, resolute, strenuous, stressful) |
| resolved(adjective, resolute) |
| responsive(adjective, person, kind, moving, keen) |
| sedulous(adjective, strong, keen, energetic, lively) |
| snappy(adjective, strong, tough, energetic, powerful) |
| sprightly(adjective, strong, keen, intense, energetic) |
| staunch(adjective, clear, kind, tough, severe) |
| unreserved(adjective, person, complete, warm, total) |
| unrestrained(adjective, person, warm, energetic, enthusiastic) |
| well-disposed(adjective, keen, happy, agreeable, enthusiastic) |
| workaholic |
| zippy(adjective, strong, tough, energetic, powerful) |
| aggressive(adjective, clear, tough, severe, keen) |
| agog(adjective, strong, keen, warm, intense) |
| agreeable(adjective, kind, keen, happy, tender) |
| amenable(adjective, keen, happy, agreeable, enthusiastic) |
| busy(adjective, strong, keen, intense, energetic) |