| hale and hearty(expression, idiom, strong, fit, healthy) |
| hardened(adjective, strong, tough) |
| healthful(health, strong, tough, fit, fresh) |
| heavy(adjective, person, body, strong, sound) |
| herculean |
| herolike(strong, bold, spirited, brave, courageous) |
| high-spirited(noun, adjective, strong, tough, bold) |
| in good fettle |
| indomitable(adjective, strong, tough, powerful, bold) |
| inflexible |
| insolent(adjective, mad, bold, naughty, impudent) |
| inured(adjective, strong, tough) |
| kinetic(adjective, strong, moving, energetic, lively) |
| lion-hearted(noun, adjective, vigorous, noble, courageous) |
| manlike(vigorous, noble, courageous, muscular, manly) |
| nail |
| normal(strong, tough, fit, fresh, well) |
| nourishing(adjective, enthusiastic, vigorous, sincere, wholehearted) |
| obstinate |
| peppy(adjective, strong, tough, energetic, powerful) |