| abiding(adjective, persistent, constant, continuous, endless) |
| aided(verb, aided, assisted) |
| assisted(verb, aided, assisted) |
| bolstered |
| continuing(persistent, lasting, recurrent, perpetual, remaining) |
| even(adjective, persistent, continuous, endless, relentless) |
| fixed(verb, adjective, persistent, constant, continuous) |
| fostered(verb, aided, assisted) |
| free burning(expression, adjective, idiom) |
| incessant(adjective, persistent, constant, continuous, unyielding) |
| perennial(adjective, persistent, enduring, lasting, recurrent) |
| propped |
| protracted(verb, adjective, great, slow, deep) |
| time-consuming |
| unchanging(adjective, persistent, constant, continuous, endless) |
| uniform(adjective, persistent, continuous, endless, relentless) |
| unremitting(adjective, persistent, constant, continuous, unyielding) |
| unvarying(adjective, persistent, continuous, endless, relentless) |
| admitted(verb, affirmed) |
| affirmed(verb, affirmed) |