| indefatigable(strong, healthy, well, robust) |
| lusty(strong, healthy, well, robust) |
| mighty(strong, healthy, well, robust) |
| muscular(strong, healthy, well, robust) |
| powerful(strong, healthy, well, robust) |
| resistant(strong, healthy, well, robust) |
| robust(strong, healthy, well, resilient) |
| rugged(strong, healthy, well, robust) |
| solid(strong, healthy, well, robust) |
| sound(strong, healthy, well, robust) |
| stalwart(strong, healthy, well, robust) |
| staunch(strong, healthy, well, robust) |
| stout(strong, healthy, well, robust) |
| strong(healthy, well, robust, resilient) |
| sturdy(strong, healthy, well, robust) |
| substantial(strong, healthy, well, robust) |
| tenacious(strong, healthy, well, robust) |
| tough(strong, healthy, well, robust) |
| unflagging(strong, healthy, well, robust) |
| vigorous(strong, healthy, well, robust) |