| immortal(adjective, continue, constant, abundant, unrestrained) |
| never-ending(adjective, continue, constant, continuous, infinite) |
| unremitting(adjective, sound, continue, determined, steady) |
| incalculable(adjective, huge, unrestrained, vast, indefinite) |
| permanent(adjective, steady, stable, persistent, constant) |
| timeless(adjective, continue, steady, constant, continuous) |
| inexhaustible(adjective, certain, stable, constant, reliable) |
| persistent(adjective, continue, certain, determined, steady) |
| enduring(adjective, certain, determined, steady, stable) |
| dateless(adjective, ageless) |
| illimitable(adjective, great, big, limited, huge) |
| immense(adjective, big, large, comfortable, huge) |
| innumerable(adjective, vast, immense, infinite, boundless) |
| lasting(adjective, certain, persistent, constant, reliable) |
| numberless(adjective, complete, absolute, indefinite, infinite) |
| sempiternal(adjective, continuous, unlimited, everlasting, uninterrupted) |
| deathless(adjective, finishing, perpetuity, stopping) |
| perennial(adjective, constant, continuous, permanent, everlasting) |
| unbroken(verb, adjective, sound, steady, persistent) |
| vast(adjective, open, large, comfortable, huge) |