| precious(adjective, importance, main, extremely significant) |
| radical(adjective, great, importance, important, significant) |
| red-blooded(adjective, strong, tough, intense, energetic) |
| spry(adjective, good, clear, strong, pleasant) |
| strategic(adjective, crucial) |
| strenuous(adjective, strong, tough, intense, energetic) |
| tough(adjective, strong, intense, energetic, important) |
| bouncing(adjective, good, clear, strong, tough) |
| capital(adjective, top, importance, important, serious) |
| exigent(adjective, big, heavy, important, significant) |
| fit(adjective, strong, complete, tough, solid) |
| focal(adjective, key, chief, foremost) |
| full of beans(expression, adjective, idiom, active, peppy) |
| healthy(adjective, good, clear, strong, complete) |
| hearty(adjective, strong, sound, complete, tough) |
| high-powered(adjective, strong, moving, energetic, lively) |
| invigorating(adjective, pleasant, wholesome, unpolluted, airy) |
| life-giving(adjective, alive) |
| peppy(adjective, strong, tough, rough, energetic) |
| prerequisite(adjective, set, right, important, significant) |