| deep-seated(adjective, set, fixed, established, hardened) |
| enduring(adjective, fixed, persistent, constant, current) |
| lingering(adjective, continue, fixed, persistent, lasting) |
| rooted(adjective, usual, fixed, persistent, established) |
| settled(adjective, set, fixed, established, hardened) |
| appalling(adjective, awful, terrible, horrible, afraid) |
| deep-rooted(adjective, set, fixed, established, lasting) |
| tenacious(adjective, persistent, continuous, lasting, habitual) |
| abiding(adjective, fixed, persistent, old, continuous) |
| customary(adjective, natural, usual, regular, established) |
| long-standing(adjective, persistent, continuous, hardened, lasting) |
| set(verb, adjective) |
| frequent(adjective, common, natural, usual, regular) |
| bad(adjective, awful, terrible, horrible, afraid) |
| lifelong(adjective, fixed, persistent, hardened, lasting) |
| prolonged(adjective, continue, persistent, constant, lasting) |
| protracted(adjective, continue, persistent, continuous, lasting) |
| recurrent(adjective, usual, regular, constant, established) |
| recurring(adjective, persistent, continuous, lasting, continuing) |
| unceasing(adjective, persistent, constant, continuous, endless) |