| strong(adjective, good, clear, strong, great) |
| vigorous(adjective, strong, great, sound, strength) |
| sturdy(adjective, strong, great, sound, strength) |
| robust(adjective, strong, great, sound, strength) |
| virile(adjective, strong, tough, energetic) |
| active(adjective, strong, direct, sound, tough) |
| lusty(adjective, strong, great, tough) |
| hardy(noun, adjective, strong, great, sound) |
| firm(noun, adjective, clear, strong, sound) |
| hearty(adjective, strong, sound, tough) |
| sound(adjective, clear, strong, direct, tough) |
| substantial(good, strong, sound, right) |
| tough(adjective, clear, strong, sound, severe) |
| hefty(adjective, strong, tough, healthy) |
| brawny(adjective, strong, tough, healthy) |
| husky(adjective, strong, tough, fresh) |
| lively(adjective, strong, tough, intense) |
| sinewy(adjective, strong, sound, tough) |
| hale(adjective, strong, sound, tough) |
| healthy(adjective, strong, tough, condition) |