| fixed(adjective, characteristic, strength, stability, constant) |
| steady(adjective, characteristic, strength, constant, stability) |
| stable(adjective, characteristic, strength, constant, stability) |
| static(characteristic, strength, stability, adjective, inactivity) |
| unchangeable(adjective, characteristic, strength, constant, stability) |
| unvarying(adjective, characteristic, strength, constant, stability) |
| unchanging(adjective, characteristic, strength, constant, stability) |
| abiding(adjective, characteristic, strength, constant, stability) |
| lasting(adjective, characteristic, strength, constant, stability) |
| stationary(adjective, characteristic, strength, constant, stability) |
| steadfast(adjective, characteristic, strength, constant, stability) |
| constant(adjective, characteristic, strength, stability, clearness) |
| firm(adjective, characteristic, strength, constant, stability) |
| immutable(adjective, characteristic, strength, constant, stability) |
| invariable(adjective, characteristic, strength, constant, stability) |
| perdurable(adjective, characteristic, strength, constant, stability) |
| unvaried(adjective, constant, permanent, everlasting, changeless) |
| changeless(adjective, constant, permanent, everlasting) |
| permanent(adjective, characteristic, strength, stability) |
| unalterable(adjective, characteristic, strength, constant, stability) |