| quicksilver |
| raring to |
| resilient |
| resolute(adjective, keen, bright, energetic, passionate) |
| restored(strong, tough, fit, lively, active) |
| robust(strong, tough, fit, fresh, well) |
| rocking(adjective, bright, energetic, lively, determined) |
| rosy-cheeked(strong, tough, fit, lively, active) |
| safe and sound(strong, tough, fit, lively, active) |
| sharp(adjective, keen, bright, energetic, passionate) |
| smacking |
| sound(strong, tough, fit, fresh, well) |
| spanking |
| sparkling(adjective, energetic, lively, determined, active) |
| spunky(adjective, bright, energetic, passionate, lively) |
| stout(strong, tough, fit, fresh, well) |
| strong(tough, fit, fresh, well, speedy) |
| sturdy(strong, tough, fit, fresh, well) |
| tough(strong, fit, fresh, well, spirited) |
| trim(strong, tough, fit, lively, active) |