| resolute(adjective, strong, keen, energetic, passionate) |
| strong(adjective, open, tough, bright, difficult) |
| tireless(adjective, strong, moving, energetic, lively) |
| valiant(adjective, person, strong, tough, feelings) |
| vehement(adjective, strong, keen, warm, difficult) |
| animate(adjective, strong, keen, bright, happy) |
| avid(adjective, strong, keen, warm, intense) |
| dauntless(adjective, person, strong, energetic, feelings) |
| ebullient(adjective, strong, keen, warm, intense) |
| enterprising(adjective, strong, tough, energetic, powerful) |
| forceful(adjective, strong, tough, keen, bright) |
| frolicsome(adjective, keen, bright, happy, energetic) |
| gamey |
| heroic(adjective, person, strong, tough, feelings) |
| industrious(adjective, strong, moving, energetic, lively) |
| lightsome(adjective, feature, state, happy, condition) |
| sportive(adjective, sharp, energetic, lively, cheerfulness) |
| strenuous(adjective, strong, tough, difficult, energetic) |
| agile(adjective, keen, energetic, lively, active) |
| airy(adjective, feature, state, trait, cheerfulness) |