| stanch(verb, health, stop, slow, perseverance) |
| stout(adjective, calm, strong, sound, tough) |
| reliable(adjective, calm, close, strong, secure) |
| unyielding(adjective, clear, strong, sound, tough) |
| indomitable(adjective, strong, firm, determined, steady) |
| solid(adjective, calm, good, strong, sound) |
| sturdy(adjective, calm, strong, sound, tough) |
| tireless(adjective, strong, firm, determined, steady) |
| tough(adjective, calm, clear, strong, sound) |
| brave(adjective, health, determined, vigorous, noble) |
| immovable(adjective, set, strong, hard, firm) |
| indefatigable(adjective, strong, tough, fit, firm) |
| sound(noun, adjective, health, calm, strong) |
| stem(verb, stop, break, close, block) |
| stubborn(adjective, characteristic, quality, strong, tough) |
| trusty(adjective, good, close, strong, correct) |
| unflagging(adjective, strong, tough, fit, firm) |
| courageous(adjective, firm, determined, vigorous, noble) |
| fixed(adjective, strong, sound, tough, flat) |
| hardy(noun, adjective, health, strong, sound) |