| well-built(adjective, calm, strong, solid, steady) |
| well-founded(adjective, calm, strong, secure, solid) |
| well-proportioned(adjective, normal, even, rigid, inflexible) |
| ageless(fixed, static, unchangeable) |
| agreeable(adjective, calm, smooth, steady, composed) |
| allegiant(adjective, firm, solid, stable, fixed) |
| ardent(adjective, firm, solid, stable, fixed) |
| bolted(adjective, strong, secure, substantial, stable) |
| braced(adjective, strong, secure, substantial, stable) |
| ceaseless(adjective, steady, regular, persistent, even) |
| cemented(adjective, strong, secure, substantial, stable) |
| chronic(adjective, persistent, continuous, endless, relentless) |
| close-fitting |
| closed(adjective, strong, secure, substantial, stable) |
| committed(steady, even, unchanging) |
| composed(adjective, calm, smooth, steady, temperate) |
| continuing(adjective, fixed, persistent, static, unchangeable) |
| cool(adjective, firm, solid, stable, fixed) |
| dead flat(expression, adjective, smooth, flat, even) |
| decided |