| heavy(adjective, informal, big, important, significant) |
| high-priority |
| husky(adjective, strong, tough, fit, healthy) |
| indefatigable(adjective, strong, tough, fit, lively) |
| leading(adjective, top, importance, important, serious) |
| life-changing |
| life-sustaining |
| mettlesome(adjective, strong, tough, intense, energetic) |
| mortal(adjective, animate, live, living, conscious) |
| muscular(adjective, strong, tough, fit, healthy) |
| of the essence(expression, adjective, idiom, important, essential) |
| overruling(adjective, importance, serious, essential, basic) |
| playful |
| quickening(adjective, alive) |
| reviving |
| rugged(adjective, strong, tough, intense, energetic) |
| signal(adjective, important, significant, imperative) |
| snappy(adjective, strong, tough, rough, energetic) |
| sound(adjective, strong, complete, tough, intense) |
| spanking(adjective, strong, tough, pleasant, energetic) |