inveterate
I
adjective
accustomed, addicted, chronic, chronical, confirmed, customary, deep-rooted, entrenched, established, firmly established, fixed, frequent, habitual, habituated, hardened, ingrained, inured, inveteratus, longstanding, penitus defixus, penitus insitus, rooted, set, time-honored, wonted
II
index
constant, durable, familiar (customary), habitual, incorrigible, ingrained, pertinacious, stable, traditional
Burton's Legal Thesaurus.
William C. Burton.
2006