| eonian |
| indefatigable(adjective, strong, firm, determined, steady) |
| monotonous(adjective, persistent, constant, continuous, endless) |
| repeated(adjective, continuous) |
| sempiternal(adjective, eternal, perpetuity) |
| unfailing(adjective, strong, continue, firm, determined) |
| uniform(adjective, persistent, continuous, endless, relentless) |
| unrelenting(adjective, persistent, constant, continuous, endless) |
| imperishable(adjective, continuous, lasting, permanent, everlasting) |
| invariable(adjective, persistent, continuous, endless, relentless) |
| repetitive(adjective, continuous) |
| stable(adjective, steady, regular, persistent, constant) |
| straight(adjective, continuous, continual, nonstop) |
| unrelieved |
| around-the-clock(adjective, continue, continual) |
| connected(adjective, steady, regular, persistent, constant) |
| even(adjective, persistent, continuous, endless, relentless) |
| habitual(adjective, persistent, continuous, endless, relentless) |
| indestructible(adjective, lasting, permanent, everlasting, unending) |
| running(adjective, steady, constant, continuous, flowing) |