| living(verb, adjective, active, resolute, constant) |
| recurrent(adjective, regular, persistent, continuous, lasting) |
| regular(adjective, slow, steady, continuous, established) |
| stubborn(persistent, continuous, hardened, lasting, confirmed) |
| unbroken(adjective, wild, original, basic, continuous) |
| unchangeable(adjective, fixed, constant, continuous, steadfast) |
| unchanging(adjective, certain, fixed, constant, reliable) |
| uninterrupted(adjective, wild, original, constant, running) |
| unremitting(adjective, strong, firm, determined, steady) |
| unvarying(adjective, fixed, continuous, unaffected, static) |
| continue |
| extending |
| extension(noun, increase, line, spread, addition) |
| immortal(adjective, endless, unrelenting, recurrent, perpetual) |
| indefatigable(adjective, strong, firm, determined, steady) |
| long-term(adjective, lasting, permanent, lifelong) |
| monotonous(adjective, continuous) |
| nonstop(adjective, continuous, continual, perpetual) |
| old(adjective, continue, familiar, established, hardened) |
| progressing(verb, adjective, constant, current, continuous) |