| robust(adjective, strong, great, sound, tough) |
| rugged(adjective, strong, tough, intense, energetic) |
| snappy(adjective, strong, tough, energetic, powerful) |
| solid as a rock(expression, adjective, idiom, strong, great) |
| sound(adjective, strong, tough, fit, intense) |
| spanking(adjective, strong, tough, energetic, powerful) |
| spirited(adjective, strong, tough, energetic, powerful) |
| steamroller(adjective, strong, tough, energetic, powerful) |
| strapping(adjective, strong, tough, intense, energetic) |
| strenuous(adjective, strong, tough, intense, energetic) |
| strong(adjective, great, sound, tough, fit) |
| sturdy(adjective, strong, tough, intense, energetic) |
| take-charge(adjective, strong, tough, energetic, powerful) |
| take-over(adjective, strong, tough, intense, energetic) |
| tough(adjective, strong, intense, energetic, powerful) |
| trim(adjective, great, right, healthy, together) |
| up to par(expression, adjective, idiom, strong, great) |
| vigorous(adjective, strong, great, sound, right) |
| vital(adjective, strong, tough, intense, energetic) |
| wrapped tight(expression, adjective, strong, great, right) |