| quickly(adverb, rapidly, pronto) |
| perpetual(adjective, strain, firmness, labour, hardiness) |
| robust(adjective, strain, firmness, labour, hardiness) |
| speedily(adverb, quickly, rapidly, pronto) |
| sturdily(adjective, adverb, strain, firmness, labour) |
| secure(verb, adjective, calm, strong, free) |
| set(adjective, calm, strong, secure, tough) |
| proof(noun, adjective, strain, firmness, labour) |
| resilient(adjective, strain, firmness, labour, hardiness) |
| rock-solid(adjective, strain, firmness, labour, hardiness) |
| immune(adjective, strain, firmness, safe, labour) |
| long-standing(adjective, strain, firmness, labour, hardiness) |
| rapidly(adverb, quickly, pronto) |
| debauched(adjective, open, light, evil, wild) |
| impregnable(adjective, strain, firm, firmness, constant) |
| flying(adjective, keen, energetic, active, speedy) |
| profligate(adjective, open, light, free, evil) |
| prompt(adjective, adverb, activity, direct, keen) |
| swiftly(adverb, quickly, rapidly, pronto) |
| diet(noun, verb, reduce, slim, refrain) |