| unchanging(adjective, change, severe, firm, harsh) |
| constant(adjective, change, firm, solid, certain) |
| permanent(adjective, stable, fixed, constant, enduring) |
| immutable(adjective, set, fixed, constant, lasting) |
| fixed(adjective, severe, firm, harsh, solid) |
| invariable(adjective, change, severe, harsh, solid) |
| unvarying(adjective, set, clear, smooth, firm) |
| unalterable |
| enduring(adjective, firm, solid, certain, stable) |
| steadfast(adjective, firm, solid, certain, steady) |
| unchangeable(adjective, firm, solid, certain, stable) |
| abiding(adjective, firm, solid, certain, stable) |
| perpetual(adjective, set, stable, fixed, constant) |
| regular(adjective, set, smooth, right, firm) |
| same(noun, adjective, change, set, smooth) |
| steady(adjective, firm, solid, certain, stable) |
| eternal(adjective, fixed, enduring, lasting, unchanging) |
| everlasting(adjective, stable, fixed, constant, enduring) |
| firm(noun, adjective, solid, certain, stable) |
| stable(adjective, smooth, right, firm, solid) |