| permanent(adjective, calm, strong, secure, firm) |
| fixed(adjective, hard, secure, rough, firm) |
| unalterable(adjective, calm, strong, hard, secure) |
| unchangeable(adjective, calm, strong, secure, firm) |
| unchanging(adjective, firm, steady, stable, regular) |
| constant(adjective, calm, strong, secure, firm) |
| invariable(adjective, calm, strong, secure, firm) |
| changeless(adjective, set, regular, fixed, lasting) |
| enduring(adjective, calm, strong, secure, firm) |
| abiding(adjective, calm, strong, secure, firm) |
| everlasting(adjective, stable, fixed, persistent, constant) |
| lasting(adjective, calm, strong, secure, firm) |
| eternal(adjective, pause, fixed, persistent, constant) |
| steadfast(adjective, calm, strong, secure, firm) |
| uniform(adjective, calm, strong, secure, firm) |
| firm(adjective, calm, strong, hard, secure) |
| stable(adjective, dull, secure, firm, steady) |
| perpetual(adjective, steady, stable, regular, fixed) |
| persistent(adjective, strong, firm, stable, constant) |
| inflexible(adjective, set, hard, secure, rough) |