| continuously |
| dateless |
| day-and-night(constant, continuous, endless, infinite, boundless) |
| deathless(constant, abundant, unrestrained, endless, immense) |
| evergreen(continuity, perpetuity) |
| faithful(adjective, steady, regular, even, continual) |
| flush(adjective, calm, quiet, direct, smooth) |
| immutable(adjective, dull, steady, stable, regular) |
| in a line(expression, idiom, continuity) |
| in line(expression, adjective, calm, smooth, flat) |
| invariable(adjective, quiet, smooth, soft, gentle) |
| planate(adjective, calm, quiet, direct, smooth) |
| protracted(adjective, endless, infinite, boundless, incessant) |
| sequent(adjective, consecutive) |
| sequential(adjective, running, logical, consecutive, ensuing) |
| sound |
| steadfast(adjective, dull, steady, stable, regular) |
| straightaway(adjective, direct, right, true, straight) |
| true(adjective, direct, smooth, right, flat) |
| unflagging |