| solid as a rock(expression, adjective, idiom, calm, strong) |
| stabile(adjective, calm, strong, solid, steady) |
| stalwart(calm, strong, solid, steady, substantial) |
| stapled(noun, verb, pointed) |
| staunch(adjective, calm, strong, secure, firm) |
| staying put(expression, adjective, calm, strong, substantial) |
| steadfast(calm, strong, secure, solid, steady) |
| steady(adjective, calm, strong, secure, firm) |
| stiff(secure, still, fixed, rigid, inflexible) |
| still(secure, rigid, inflexible, stubborn, motionless) |
| stout(calm, strong, solid, steady, substantial) |
| strong(adjective, calm, secure, firm, solid) |
| studded |
| sturdy(calm, strong, solid, steady, substantial) |
| substantial(calm, strong, solid, steady, even) |
| sure(adjective, calm, strong, secure, firm) |
| tenacious(adjective, strong, secure, solid, steady) |
| toenailed |
| together(calm, strong, solid, steady, substantial) |
| tough(calm, strong, solid, steady, substantial) |